Home / 78,877.20-108,853.28-44,890.81

Finding the Fourth Proportional to 78,877.20, 108,853.28 and 44,890.81

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Solution

The fourth proportional to 78,877.20, 108,853.28 and 44,890.81 is: 61,950.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,877.20 : 108,853.28 = 44,890.81 : x
  2. Step 2: Convert to fraction form
    78,877.20/108,853.28 = 44,890.81/x
  3. Step 3: Cross multiply
    78,877.20x = 108,853.28 × 44,890.81
  4. Step 4: Simplify right side
    78,877.20x = 4,886,511,910.36
  5. Step 5: Solve for x
    x = 4,886,511,910.36/78,877.20
  6. Step 6: Final answer
    x = 61,950.88

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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.