Home / 91,604.04-137,425.64-28,422.78

Finding the Fourth Proportional to 91,604.04, 137,425.64 and 28,422.78

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Solution

The fourth proportional to 91,604.04, 137,425.64 and 28,422.78 is: 42,640.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,604.04 : 137,425.64 = 28,422.78 : x
  2. Step 2: Convert to fraction form
    91,604.04/137,425.64 = 28,422.78/x
  3. Step 3: Cross multiply
    91,604.04x = 137,425.64 × 28,422.78
  4. Step 4: Simplify right side
    91,604.04x = 3,906,018,589.97
  5. Step 5: Solve for x
    x = 3,906,018,589.97/91,604.04
  6. Step 6: Final answer
    x = 42,640.24

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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.