Home / 55,793.36-76,996.68-30,645.20

Finding the Fourth Proportional to 55,793.36, 76,996.68 and 30,645.20

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Solution

The fourth proportional to 55,793.36, 76,996.68 and 30,645.20 is: 42,291.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,793.36 : 76,996.68 = 30,645.20 : x
  2. Step 2: Convert to fraction form
    55,793.36/76,996.68 = 30,645.20/x
  3. Step 3: Cross multiply
    55,793.36x = 76,996.68 × 30,645.20
  4. Step 4: Simplify right side
    55,793.36x = 2,359,578,657.94
  5. Step 5: Solve for x
    x = 2,359,578,657.94/55,793.36
  6. Step 6: Final answer
    x = 42,291.39

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Half scale
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Double scale
Find fourth proportional to 55,794.36, 76,998.06 and 30,646.20
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.