Home / 82,140.56-123,229.36-25,984.08

Finding the Fourth Proportional to 82,140.56, 123,229.36 and 25,984.08

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Solution

The fourth proportional to 82,140.56, 123,229.36 and 25,984.08 is: 38,981.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,140.56 : 123,229.36 = 25,984.08 : x
  2. Step 2: Convert to fraction form
    82,140.56/123,229.36 = 25,984.08/x
  3. Step 3: Cross multiply
    82,140.56x = 123,229.36 × 25,984.08
  4. Step 4: Simplify right side
    82,140.56x = 3,202,001,548.59
  5. Step 5: Solve for x
    x = 3,202,001,548.59/82,140.56
  6. Step 6: Final answer
    x = 38,981.98

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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.