Home / 87,744.40-131,465.40-40,901.20

Finding the Fourth Proportional to 87,744.40, 131,465.40 and 40,901.20

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Solution

The fourth proportional to 87,744.40, 131,465.40 and 40,901.20 is: 61,281.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,744.40 : 131,465.40 = 40,901.20 : x
  2. Step 2: Convert to fraction form
    87,744.40/131,465.40 = 40,901.20/x
  3. Step 3: Cross multiply
    87,744.40x = 131,465.40 × 40,901.20
  4. Step 4: Simplify right side
    87,744.40x = 5,377,092,618.48
  5. Step 5: Solve for x
    x = 5,377,092,618.48/87,744.40
  6. Step 6: Final answer
    x = 61,281.32

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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.