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Finding the Fourth Proportional to 79,465.92, 109,658.52 and 47,618.88

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Solution

The fourth proportional to 79,465.92, 109,658.52 and 47,618.88 is: 65,711.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,465.92 : 109,658.52 = 47,618.88 : x
  2. Step 2: Convert to fraction form
    79,465.92/109,658.52 = 47,618.88/x
  3. Step 3: Cross multiply
    79,465.92x = 109,658.52 × 47,618.88
  4. Step 4: Simplify right side
    79,465.92x = 5,221,815,904.86
  5. Step 5: Solve for x
    x = 5,221,815,904.86/79,465.92
  6. Step 6: Final answer
    x = 65,711.39

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