Home / 86,689.62-129,997.51-34,062.19

Finding the Fourth Proportional to 86,689.62, 129,997.51 and 34,062.19

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Solution

The fourth proportional to 86,689.62, 129,997.51 and 34,062.19 is: 51,078.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,689.62 : 129,997.51 = 34,062.19 : x
  2. Step 2: Convert to fraction form
    86,689.62/129,997.51 = 34,062.19/x
  3. Step 3: Cross multiply
    86,689.62x = 129,997.51 × 34,062.19
  4. Step 4: Simplify right side
    86,689.62x = 4,427,999,475.00
  5. Step 5: Solve for x
    x = 4,427,999,475.00/86,689.62
  6. Step 6: Final answer
    x = 51,078.77

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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.