Home / 91,781.03-137,684.69-40,546.76

Finding the Fourth Proportional to 91,781.03, 137,684.69 and 40,546.76

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Solution

The fourth proportional to 91,781.03, 137,684.69 and 40,546.76 is: 60,825.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,781.03 : 137,684.69 = 40,546.76 : x
  2. Step 2: Convert to fraction form
    91,781.03/137,684.69 = 40,546.76/x
  3. Step 3: Cross multiply
    91,781.03x = 137,684.69 × 40,546.76
  4. Step 4: Simplify right side
    91,781.03x = 5,582,668,002.44
  5. Step 5: Solve for x
    x = 5,582,668,002.44/91,781.03
  6. Step 6: Final answer
    x = 60,825.94

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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.