Home / 91,778.59-137,641.38-25,220.89

Finding the Fourth Proportional to 91,778.59, 137,641.38 and 25,220.89

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Solution

The fourth proportional to 91,778.59, 137,641.38 and 25,220.89 is: 37,824.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,778.59 : 137,641.38 = 25,220.89 : x
  2. Step 2: Convert to fraction form
    91,778.59/137,641.38 = 25,220.89/x
  3. Step 3: Cross multiply
    91,778.59x = 137,641.38 × 25,220.89
  4. Step 4: Simplify right side
    91,778.59x = 3,471,438,104.43
  5. Step 5: Solve for x
    x = 3,471,438,104.43/91,778.59
  6. Step 6: Final answer
    x = 37,824.05

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1.5x scale

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.