Home / 55,191.17-76,165.65-31,318.85

Finding the Fourth Proportional to 55,191.17, 76,165.65 and 31,318.85

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Solution

The fourth proportional to 55,191.17, 76,165.65 and 31,318.85 is: 43,221.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,191.17 : 76,165.65 = 31,318.85 : x
  2. Step 2: Convert to fraction form
    55,191.17/76,165.65 = 31,318.85/x
  3. Step 3: Cross multiply
    55,191.17x = 76,165.65 × 31,318.85
  4. Step 4: Simplify right side
    55,191.17x = 2,385,420,757.92
  5. Step 5: Solve for x
    x = 2,385,420,757.92/55,191.17
  6. Step 6: Final answer
    x = 43,221.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.