Home / 82,388.46-123,683.67-54,331.95

Finding the Fourth Proportional to 82,388.46, 123,683.67 and 54,331.95

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Solution

The fourth proportional to 82,388.46, 123,683.67 and 54,331.95 is: 81,564.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,388.46 : 123,683.67 = 54,331.95 : x
  2. Step 2: Convert to fraction form
    82,388.46/123,683.67 = 54,331.95/x
  3. Step 3: Cross multiply
    82,388.46x = 123,683.67 × 54,331.95
  4. Step 4: Simplify right side
    82,388.46x = 6,719,974,974.26
  5. Step 5: Solve for x
    x = 6,719,974,974.26/82,388.46
  6. Step 6: Final answer
    x = 81,564.52

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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.