Home / 80,877.38-111,609.28-45,066.62

Finding the Fourth Proportional to 80,877.38, 111,609.28 and 45,066.62

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Solution

The fourth proportional to 80,877.38, 111,609.28 and 45,066.62 is: 62,191.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,877.38 : 111,609.28 = 45,066.62 : x
  2. Step 2: Convert to fraction form
    80,877.38/111,609.28 = 45,066.62/x
  3. Step 3: Cross multiply
    80,877.38x = 111,609.28 × 45,066.62
  4. Step 4: Simplify right side
    80,877.38x = 5,029,853,010.23
  5. Step 5: Solve for x
    x = 5,029,853,010.23/80,877.38
  6. Step 6: Final answer
    x = 62,191.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.