Home / 87,131.85-130,828.99-49,734.15

Finding the Fourth Proportional to 87,131.85, 130,828.99 and 49,734.15

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Solution

The fourth proportional to 87,131.85, 130,828.99 and 49,734.15 is: 74,676.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,131.85 : 130,828.99 = 49,734.15 : x
  2. Step 2: Convert to fraction form
    87,131.85/130,828.99 = 49,734.15/x
  3. Step 3: Cross multiply
    87,131.85x = 130,828.99 × 49,734.15
  4. Step 4: Simplify right side
    87,131.85x = 6,506,668,613.01
  5. Step 5: Solve for x
    x = 6,506,668,613.01/87,131.85
  6. Step 6: Final answer
    x = 74,676.12

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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.