Home / 91,438.60-137,098.70-38,833.80

Finding the Fourth Proportional to 91,438.60, 137,098.70 and 38,833.80

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Solution

The fourth proportional to 91,438.60, 137,098.70 and 38,833.80 is: 58,225.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,438.60 : 137,098.70 = 38,833.80 : x
  2. Step 2: Convert to fraction form
    91,438.60/137,098.70 = 38,833.80/x
  3. Step 3: Cross multiply
    91,438.60x = 137,098.70 × 38,833.80
  4. Step 4: Simplify right side
    91,438.60x = 5,324,063,496.06
  5. Step 5: Solve for x
    x = 5,324,063,496.06/91,438.60
  6. Step 6: Final answer
    x = 58,225.56

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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.