Home / 83,720.92-125,581.44-21,391.48

Finding the Fourth Proportional to 83,720.92, 125,581.44 and 21,391.48

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Solution

The fourth proportional to 83,720.92, 125,581.44 and 21,391.48 is: 32,087.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,720.92 : 125,581.44 = 21,391.48 : x
  2. Step 2: Convert to fraction form
    83,720.92/125,581.44 = 21,391.48/x
  3. Step 3: Cross multiply
    83,720.92x = 125,581.44 × 21,391.48
  4. Step 4: Simplify right side
    83,720.92x = 2,686,372,862.13
  5. Step 5: Solve for x
    x = 2,686,372,862.13/83,720.92
  6. Step 6: Final answer
    x = 32,087.24

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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.