Home / 87,387.27-130,798.98-45,209.28

Finding the Fourth Proportional to 87,387.27, 130,798.98 and 45,209.28

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Solution

The fourth proportional to 87,387.27, 130,798.98 and 45,209.28 is: 67,668.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,387.27 : 130,798.98 = 45,209.28 : x
  2. Step 2: Convert to fraction form
    87,387.27/130,798.98 = 45,209.28/x
  3. Step 3: Cross multiply
    87,387.27x = 130,798.98 × 45,209.28
  4. Step 4: Simplify right side
    87,387.27x = 5,913,327,710.53
  5. Step 5: Solve for x
    x = 5,913,327,710.53/87,387.27
  6. Step 6: Final answer
    x = 67,668.07

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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.