Home / 91,979.46-137,853.82-39,327.14

Finding the Fourth Proportional to 91,979.46, 137,853.82 and 39,327.14

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Solution

The fourth proportional to 91,979.46, 137,853.82 and 39,327.14 is: 58,941.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,979.46 : 137,853.82 = 39,327.14 : x
  2. Step 2: Convert to fraction form
    91,979.46/137,853.82 = 39,327.14/x
  3. Step 3: Cross multiply
    91,979.46x = 137,853.82 × 39,327.14
  4. Step 4: Simplify right side
    91,979.46x = 5,421,396,478.67
  5. Step 5: Solve for x
    x = 5,421,396,478.67/91,979.46
  6. Step 6: Final answer
    x = 58,941.38

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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.