Home / 91,383.12-137,074.68-60,211.08

Finding the Fourth Proportional to 91,383.12, 137,074.68 and 60,211.08

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Solution

The fourth proportional to 91,383.12, 137,074.68 and 60,211.08 is: 90,316.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,383.12 : 137,074.68 = 60,211.08 : x
  2. Step 2: Convert to fraction form
    91,383.12/137,074.68 = 60,211.08/x
  3. Step 3: Cross multiply
    91,383.12x = 137,074.68 × 60,211.08
  4. Step 4: Simplify right side
    91,383.12x = 8,253,414,523.45
  5. Step 5: Solve for x
    x = 8,253,414,523.45/91,383.12
  6. Step 6: Final answer
    x = 90,316.62

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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.