Home / 91,982.54-137,951.94-25,421.20

Finding the Fourth Proportional to 91,982.54, 137,951.94 and 25,421.20

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Solution

The fourth proportional to 91,982.54, 137,951.94 and 25,421.20 is: 38,125.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,982.54 : 137,951.94 = 25,421.20 : x
  2. Step 2: Convert to fraction form
    91,982.54/137,951.94 = 25,421.20/x
  3. Step 3: Cross multiply
    91,982.54x = 137,951.94 × 25,421.20
  4. Step 4: Simplify right side
    91,982.54x = 3,506,903,857.13
  5. Step 5: Solve for x
    x = 3,506,903,857.13/91,982.54
  6. Step 6: Final answer
    x = 38,125.76

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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.