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Finding the Fourth Proportional to 83,575.53, 125,364.84 and 20,395.83

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Solution

The fourth proportional to 83,575.53, 125,364.84 and 20,395.83 is: 30,594.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,575.53 : 125,364.84 = 20,395.83 : x
  2. Step 2: Convert to fraction form
    83,575.53/125,364.84 = 20,395.83/x
  3. Step 3: Cross multiply
    83,575.53x = 125,364.84 × 20,395.83
  4. Step 4: Simplify right side
    83,575.53x = 2,556,919,964.62
  5. Step 5: Solve for x
    x = 2,556,919,964.62/83,575.53
  6. Step 6: Final answer
    x = 30,594.12

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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.