Home / 91,308.29-136,949.68-31,335.83

Finding the Fourth Proportional to 91,308.29, 136,949.68 and 31,335.83

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Solution

The fourth proportional to 91,308.29, 136,949.68 and 31,335.83 is: 46,999.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,308.29 : 136,949.68 = 31,335.83 : x
  2. Step 2: Convert to fraction form
    91,308.29/136,949.68 = 31,335.83/x
  3. Step 3: Cross multiply
    91,308.29x = 136,949.68 × 31,335.83
  4. Step 4: Simplify right side
    91,308.29x = 4,291,431,049.61
  5. Step 5: Solve for x
    x = 4,291,431,049.61/91,308.29
  6. Step 6: Final answer
    x = 46,999.36

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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.