Home / 83,422.61-115,125.54-50,716.97

Finding the Fourth Proportional to 83,422.61, 115,125.54 and 50,716.97

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Solution

The fourth proportional to 83,422.61, 115,125.54 and 50,716.97 is: 69,990.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,422.61 : 115,125.54 = 50,716.97 : x
  2. Step 2: Convert to fraction form
    83,422.61/115,125.54 = 50,716.97/x
  3. Step 3: Cross multiply
    83,422.61x = 115,125.54 × 50,716.97
  4. Step 4: Simplify right side
    83,422.61x = 5,838,818,558.41
  5. Step 5: Solve for x
    x = 5,838,818,558.41/83,422.61
  6. Step 6: Final answer
    x = 69,990.84

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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.