Home / 87,730.48-131,598.15-28,569.70

Finding the Fourth Proportional to 87,730.48, 131,598.15 and 28,569.70

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Solution

The fourth proportional to 87,730.48, 131,598.15 and 28,569.70 is: 42,855.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,730.48 : 131,598.15 = 28,569.70 : x
  2. Step 2: Convert to fraction form
    87,730.48/131,598.15 = 28,569.70/x
  3. Step 3: Cross multiply
    87,730.48x = 131,598.15 × 28,569.70
  4. Step 4: Simplify right side
    87,730.48x = 3,759,719,666.06
  5. Step 5: Solve for x
    x = 3,759,719,666.06/87,730.48
  6. Step 6: Final answer
    x = 42,855.34

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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.