Home / 81,540.80-112,474.51-58,913.04

Finding the Fourth Proportional to 81,540.80, 112,474.51 and 58,913.04

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Solution

The fourth proportional to 81,540.80, 112,474.51 and 58,913.04 is: 81,262.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,540.80 : 112,474.51 = 58,913.04 : x
  2. Step 2: Convert to fraction form
    81,540.80/112,474.51 = 58,913.04/x
  3. Step 3: Cross multiply
    81,540.80x = 112,474.51 × 58,913.04
  4. Step 4: Simplify right side
    81,540.80x = 6,626,215,306.61
  5. Step 5: Solve for x
    x = 6,626,215,306.61/81,540.80
  6. Step 6: Final answer
    x = 81,262.57

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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.