Home / 91,934.38-137,909.94-35,778.70

Finding the Fourth Proportional to 91,934.38, 137,909.94 and 35,778.70

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Solution

The fourth proportional to 91,934.38, 137,909.94 and 35,778.70 is: 53,671.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,934.38 : 137,909.94 = 35,778.70 : x
  2. Step 2: Convert to fraction form
    91,934.38/137,909.94 = 35,778.70/x
  3. Step 3: Cross multiply
    91,934.38x = 137,909.94 × 35,778.70
  4. Step 4: Simplify right side
    91,934.38x = 4,934,238,370.28
  5. Step 5: Solve for x
    x = 4,934,238,370.28/91,934.38
  6. Step 6: Final answer
    x = 53,671.31

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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.