Home / 87,493.04-131,260.47-28,328.78

Finding the Fourth Proportional to 87,493.04, 131,260.47 and 28,328.78

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Solution

The fourth proportional to 87,493.04, 131,260.47 and 28,328.78 is: 42,499.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,493.04 : 131,260.47 = 28,328.78 : x
  2. Step 2: Convert to fraction form
    87,493.04/131,260.47 = 28,328.78/x
  3. Step 3: Cross multiply
    87,493.04x = 131,260.47 × 28,328.78
  4. Step 4: Simplify right side
    87,493.04x = 3,718,448,179.38
  5. Step 5: Solve for x
    x = 3,718,448,179.38/87,493.04
  6. Step 6: Final answer
    x = 42,499.93

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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.