Home / 87,752.40-131,477.40-40,909.20

Finding the Fourth Proportional to 87,752.40, 131,477.40 and 40,909.20

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Solution

The fourth proportional to 87,752.40, 131,477.40 and 40,909.20 is: 61,293.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,752.40 : 131,477.40 = 40,909.20 : x
  2. Step 2: Convert to fraction form
    87,752.40/131,477.40 = 40,909.20/x
  3. Step 3: Cross multiply
    87,752.40x = 131,477.40 × 40,909.20
  4. Step 4: Simplify right side
    87,752.40x = 5,378,635,252.08
  5. Step 5: Solve for x
    x = 5,378,635,252.08/87,752.40
  6. Step 6: Final answer
    x = 61,293.31

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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.