Home / 45,565.05-68,324.18-20,591.57

Finding the Fourth Proportional to 45,565.05, 68,324.18 and 20,591.57

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Solution

The fourth proportional to 45,565.05, 68,324.18 and 20,591.57 is: 30,876.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,565.05 : 68,324.18 = 20,591.57 : x
  2. Step 2: Convert to fraction form
    45,565.05/68,324.18 = 20,591.57/x
  3. Step 3: Cross multiply
    45,565.05x = 68,324.18 × 20,591.57
  4. Step 4: Simplify right side
    45,565.05x = 1,406,902,203.02
  5. Step 5: Solve for x
    x = 1,406,902,203.02/45,565.05
  6. Step 6: Final answer
    x = 30,876.78

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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.