Home / 78,863.12-108,829.65-44,870.86

Finding the Fourth Proportional to 78,863.12, 108,829.65 and 44,870.86

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Solution

The fourth proportional to 78,863.12, 108,829.65 and 44,870.86 is: 61,920.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,863.12 : 108,829.65 = 44,870.86 : x
  2. Step 2: Convert to fraction form
    78,863.12/108,829.65 = 44,870.86/x
  3. Step 3: Cross multiply
    78,863.12x = 108,829.65 × 44,870.86
  4. Step 4: Simplify right side
    78,863.12x = 4,883,279,716.92
  5. Step 5: Solve for x
    x = 4,883,279,716.92/78,863.12
  6. Step 6: Final answer
    x = 61,920.96

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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.