Home / 55,346.40-83,019.60-45,496.80

Finding the Fourth Proportional to 55,346.40, 83,019.60 and 45,496.80

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Solution

The fourth proportional to 55,346.40, 83,019.60 and 45,496.80 is: 68,245.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,346.40 : 83,019.60 = 45,496.80 : x
  2. Step 2: Convert to fraction form
    55,346.40/83,019.60 = 45,496.80/x
  3. Step 3: Cross multiply
    55,346.40x = 83,019.60 × 45,496.80
  4. Step 4: Simplify right side
    55,346.40x = 3,777,126,137.28
  5. Step 5: Solve for x
    x = 3,777,126,137.28/55,346.40
  6. Step 6: Final answer
    x = 68,245.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.