Home / 87,265.50-130,898.25-28,107.15

Finding the Fourth Proportional to 87,265.50, 130,898.25 and 28,107.15

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Solution

The fourth proportional to 87,265.50, 130,898.25 and 28,107.15 is: 42,160.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,265.50 : 130,898.25 = 28,107.15 : x
  2. Step 2: Convert to fraction form
    87,265.50/130,898.25 = 28,107.15/x
  3. Step 3: Cross multiply
    87,265.50x = 130,898.25 × 28,107.15
  4. Step 4: Simplify right side
    87,265.50x = 3,679,176,747.49
  5. Step 5: Solve for x
    x = 3,679,176,747.49/87,265.50
  6. Step 6: Final answer
    x = 42,160.73

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1.5x scale

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.