Home / 83,382.12-125,073.96-21,052.56

Finding the Fourth Proportional to 83,382.12, 125,073.96 and 21,052.56

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Solution

The fourth proportional to 83,382.12, 125,073.96 and 21,052.56 is: 31,579.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,382.12 : 125,073.96 = 21,052.56 : x
  2. Step 2: Convert to fraction form
    83,382.12/125,073.96 = 21,052.56/x
  3. Step 3: Cross multiply
    83,382.12x = 125,073.96 × 21,052.56
  4. Step 4: Simplify right side
    83,382.12x = 2,633,127,047.34
  5. Step 5: Solve for x
    x = 2,633,127,047.34/83,382.12
  6. Step 6: Final answer
    x = 31,579.04

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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.