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Finding the Fourth Proportional to 79,352.53, 109,557.79 and 49,169.88

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Solution

The fourth proportional to 79,352.53, 109,557.79 and 49,169.88 is: 67,886.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,352.53 : 109,557.79 = 49,169.88 : x
  2. Step 2: Convert to fraction form
    79,352.53/109,557.79 = 49,169.88/x
  3. Step 3: Cross multiply
    79,352.53x = 109,557.79 × 49,169.88
  4. Step 4: Simplify right side
    79,352.53x = 5,386,943,264.44
  5. Step 5: Solve for x
    x = 5,386,943,264.44/79,352.53
  6. Step 6: Final answer
    x = 67,886.22

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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.