Home / 83,161.47-124,716.07-26,988.61

Finding the Fourth Proportional to 83,161.47, 124,716.07 and 26,988.61

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Solution

The fourth proportional to 83,161.47, 124,716.07 and 26,988.61 is: 40,474.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,161.47 : 124,716.07 = 26,988.61 : x
  2. Step 2: Convert to fraction form
    83,161.47/124,716.07 = 26,988.61/x
  3. Step 3: Cross multiply
    83,161.47x = 124,716.07 × 26,988.61
  4. Step 4: Simplify right side
    83,161.47x = 3,365,912,689.75
  5. Step 5: Solve for x
    x = 3,365,912,689.75/83,161.47
  6. Step 6: Final answer
    x = 40,474.42

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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.