Home / 87,899.45-121,301.19-47,613.11

Finding the Fourth Proportional to 87,899.45, 121,301.19 and 47,613.11

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Solution

The fourth proportional to 87,899.45, 121,301.19 and 47,613.11 is: 65,706.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,899.45 : 121,301.19 = 47,613.11 : x
  2. Step 2: Convert to fraction form
    87,899.45/121,301.19 = 47,613.11/x
  3. Step 3: Cross multiply
    87,899.45x = 121,301.19 × 47,613.11
  4. Step 4: Simplify right side
    87,899.45x = 5,775,526,902.60
  5. Step 5: Solve for x
    x = 5,775,526,902.60/87,899.45
  6. Step 6: Final answer
    x = 65,706.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.