Home / 81,406.44-122,151.33-38,760.14

Finding the Fourth Proportional to 81,406.44, 122,151.33 and 38,760.14

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Solution

The fourth proportional to 81,406.44, 122,151.33 and 38,760.14 is: 58,160.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,406.44 : 122,151.33 = 38,760.14 : x
  2. Step 2: Convert to fraction form
    81,406.44/122,151.33 = 38,760.14/x
  3. Step 3: Cross multiply
    81,406.44x = 122,151.33 × 38,760.14
  4. Step 4: Simplify right side
    81,406.44x = 4,734,602,957.36
  5. Step 5: Solve for x
    x = 4,734,602,957.36/81,406.44
  6. Step 6: Final answer
    x = 58,160.05

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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.