Home / 77,310.12-115,928.49-29,947.41

Finding the Fourth Proportional to 77,310.12, 115,928.49 and 29,947.41

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Solution

The fourth proportional to 77,310.12, 115,928.49 and 29,947.41 is: 44,906.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,310.12 : 115,928.49 = 29,947.41 : x
  2. Step 2: Convert to fraction form
    77,310.12/115,928.49 = 29,947.41/x
  3. Step 3: Cross multiply
    77,310.12x = 115,928.49 × 29,947.41
  4. Step 4: Simplify right side
    77,310.12x = 3,471,758,020.71
  5. Step 5: Solve for x
    x = 3,471,758,020.71/77,310.12
  6. Step 6: Final answer
    x = 44,906.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.