Home / 83,429.38-125,142.74-20,250.02

Finding the Fourth Proportional to 83,429.38, 125,142.74 and 20,250.02

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Solution

The fourth proportional to 83,429.38, 125,142.74 and 20,250.02 is: 30,374.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,429.38 : 125,142.74 = 20,250.02 : x
  2. Step 2: Convert to fraction form
    83,429.38/125,142.74 = 20,250.02/x
  3. Step 3: Cross multiply
    83,429.38x = 125,142.74 × 20,250.02
  4. Step 4: Simplify right side
    83,429.38x = 2,534,142,886.60
  5. Step 5: Solve for x
    x = 2,534,142,886.60/83,429.38
  6. Step 6: Final answer
    x = 30,374.71

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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.