Home / 87,139.20-130,752.04-34,547.52

Finding the Fourth Proportional to 87,139.20, 130,752.04 and 34,547.52

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Solution

The fourth proportional to 87,139.20, 130,752.04 and 34,547.52 is: 51,838.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,139.20 : 130,752.04 = 34,547.52 : x
  2. Step 2: Convert to fraction form
    87,139.20/130,752.04 = 34,547.52/x
  3. Step 3: Cross multiply
    87,139.20x = 130,752.04 × 34,547.52
  4. Step 4: Simplify right side
    87,139.20x = 4,517,158,716.94
  5. Step 5: Solve for x
    x = 4,517,158,716.94/87,139.20
  6. Step 6: Final answer
    x = 51,838.42

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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.