Home / 81,917.04-122,897.05-25,754.88

Finding the Fourth Proportional to 81,917.04, 122,897.05 and 25,754.88

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Solution

The fourth proportional to 81,917.04, 122,897.05 and 25,754.88 is: 38,639.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,917.04 : 122,897.05 = 25,754.88 : x
  2. Step 2: Convert to fraction form
    81,917.04/122,897.05 = 25,754.88/x
  3. Step 3: Cross multiply
    81,917.04x = 122,897.05 × 25,754.88
  4. Step 4: Simplify right side
    81,917.04x = 3,165,198,710.72
  5. Step 5: Solve for x
    x = 3,165,198,710.72/81,917.04
  6. Step 6: Final answer
    x = 38,639.08

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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.