Home / 71,522.19-98,705.25-39,691.08

Finding the Fourth Proportional to 71,522.19, 98,705.25 and 39,691.08

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Solution

The fourth proportional to 71,522.19, 98,705.25 and 39,691.08 is: 54,776.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,522.19 : 98,705.25 = 39,691.08 : x
  2. Step 2: Convert to fraction form
    71,522.19/98,705.25 = 39,691.08/x
  3. Step 3: Cross multiply
    71,522.19x = 98,705.25 × 39,691.08
  4. Step 4: Simplify right side
    71,522.19x = 3,917,717,974.17
  5. Step 5: Solve for x
    x = 3,917,717,974.17/71,522.19
  6. Step 6: Final answer
    x = 54,776.26

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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.