Home / 81,691.77-122,554.05-37,306.62

Finding the Fourth Proportional to 81,691.77, 122,554.05 and 37,306.62

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Solution

The fourth proportional to 81,691.77, 122,554.05 and 37,306.62 is: 55,967.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,691.77 : 122,554.05 = 37,306.62 : x
  2. Step 2: Convert to fraction form
    81,691.77/122,554.05 = 37,306.62/x
  3. Step 3: Cross multiply
    81,691.77x = 122,554.05 × 37,306.62
  4. Step 4: Simplify right side
    81,691.77x = 4,572,077,372.81
  5. Step 5: Solve for x
    x = 4,572,077,372.81/81,691.77
  6. Step 6: Final answer
    x = 55,967.42

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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.