Home / 91,609.27-137,391.80-38,272.44

Finding the Fourth Proportional to 91,609.27, 137,391.80 and 38,272.44

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Solution

The fourth proportional to 91,609.27, 137,391.80 and 38,272.44 is: 57,399.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,609.27 : 137,391.80 = 38,272.44 : x
  2. Step 2: Convert to fraction form
    91,609.27/137,391.80 = 38,272.44/x
  3. Step 3: Cross multiply
    91,609.27x = 137,391.80 × 38,272.44
  4. Step 4: Simplify right side
    91,609.27x = 5,258,318,830.71
  5. Step 5: Solve for x
    x = 5,258,318,830.71/91,609.27
  6. Step 6: Final answer
    x = 57,399.42

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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.