Home / 76,928.97-115,366.10-29,547.62

Finding the Fourth Proportional to 76,928.97, 115,366.10 and 29,547.62

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Solution

The fourth proportional to 76,928.97, 115,366.10 and 29,547.62 is: 44,310.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,928.97 : 115,366.10 = 29,547.62 : x
  2. Step 2: Convert to fraction form
    76,928.97/115,366.10 = 29,547.62/x
  3. Step 3: Cross multiply
    76,928.97x = 115,366.10 × 29,547.62
  4. Step 4: Simplify right side
    76,928.97x = 3,408,792,959.11
  5. Step 5: Solve for x
    x = 3,408,792,959.11/76,928.97
  6. Step 6: Final answer
    x = 44,310.91

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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.