Home / 55,291.14-76,301.60-30,140.64

Finding the Fourth Proportional to 55,291.14, 76,301.60 and 30,140.64

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Solution

The fourth proportional to 55,291.14, 76,301.60 and 30,140.64 is: 41,593.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,291.14 : 76,301.60 = 30,140.64 : x
  2. Step 2: Convert to fraction form
    55,291.14/76,301.60 = 30,140.64/x
  3. Step 3: Cross multiply
    55,291.14x = 76,301.60 × 30,140.64
  4. Step 4: Simplify right side
    55,291.14x = 2,299,778,906.32
  5. Step 5: Solve for x
    x = 2,299,778,906.32/55,291.14
  6. Step 6: Final answer
    x = 41,593.99

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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.