Home / 87,275.52-130,929.60-47,810.88

Finding the Fourth Proportional to 87,275.52, 130,929.60 and 47,810.88

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Solution

The fourth proportional to 87,275.52, 130,929.60 and 47,810.88 is: 71,725.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,275.52 : 130,929.60 = 47,810.88 : x
  2. Step 2: Convert to fraction form
    87,275.52/130,929.60 = 47,810.88/x
  3. Step 3: Cross multiply
    87,275.52x = 130,929.60 × 47,810.88
  4. Step 4: Simplify right side
    87,275.52x = 6,259,859,394.05
  5. Step 5: Solve for x
    x = 6,259,859,394.05/87,275.52
  6. Step 6: Final answer
    x = 71,725.26

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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.