Home / 78,874.11-108,733.23-48,639.15

Finding the Fourth Proportional to 78,874.11, 108,733.23 and 48,639.15

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Solution

The fourth proportional to 78,874.11, 108,733.23 and 48,639.15 is: 67,052.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,874.11 : 108,733.23 = 48,639.15 : x
  2. Step 2: Convert to fraction form
    78,874.11/108,733.23 = 48,639.15/x
  3. Step 3: Cross multiply
    78,874.11x = 108,733.23 × 48,639.15
  4. Step 4: Simplify right side
    78,874.11x = 5,288,691,883.95
  5. Step 5: Solve for x
    x = 5,288,691,883.95/78,874.11
  6. Step 6: Final answer
    x = 67,052.32

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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.