Home / 78,757.16-108,705.60-44,785.56

Finding the Fourth Proportional to 78,757.16, 108,705.60 and 44,785.56

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Solution

The fourth proportional to 78,757.16, 108,705.60 and 44,785.56 is: 61,815.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,757.16 : 108,705.60 = 44,785.56 : x
  2. Step 2: Convert to fraction form
    78,757.16/108,705.60 = 44,785.56/x
  3. Step 3: Cross multiply
    78,757.16x = 108,705.60 × 44,785.56
  4. Step 4: Simplify right side
    78,757.16x = 4,868,441,171.14
  5. Step 5: Solve for x
    x = 4,868,441,171.14/78,757.16
  6. Step 6: Final answer
    x = 61,815.85

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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.