Home / 86,516.20-129,879.60-49,102.30

Finding the Fourth Proportional to 86,516.20, 129,879.60 and 49,102.30

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Solution

The fourth proportional to 86,516.20, 129,879.60 and 49,102.30 is: 73,713.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,516.20 : 129,879.60 = 49,102.30 : x
  2. Step 2: Convert to fraction form
    86,516.20/129,879.60 = 49,102.30/x
  3. Step 3: Cross multiply
    86,516.20x = 129,879.60 × 49,102.30
  4. Step 4: Simplify right side
    86,516.20x = 6,377,387,083.08
  5. Step 5: Solve for x
    x = 6,377,387,083.08/86,516.20
  6. Step 6: Final answer
    x = 73,713.21

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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.