Home / 87,115.78-130,680.15-44,969.55

Finding the Fourth Proportional to 87,115.78, 130,680.15 and 44,969.55

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Solution

The fourth proportional to 87,115.78, 130,680.15 and 44,969.55 is: 67,457.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,115.78 : 130,680.15 = 44,969.55 : x
  2. Step 2: Convert to fraction form
    87,115.78/130,680.15 = 44,969.55/x
  3. Step 3: Cross multiply
    87,115.78x = 130,680.15 × 44,969.55
  4. Step 4: Simplify right side
    87,115.78x = 5,876,626,886.03
  5. Step 5: Solve for x
    x = 5,876,626,886.03/87,115.78
  6. Step 6: Final answer
    x = 67,457.66

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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.