Home / 80,959.10-121,440.06-31,042.04

Finding the Fourth Proportional to 80,959.10, 121,440.06 and 31,042.04

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Solution

The fourth proportional to 80,959.10, 121,440.06 and 31,042.04 is: 46,563.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,959.10 : 121,440.06 = 31,042.04 : x
  2. Step 2: Convert to fraction form
    80,959.10/121,440.06 = 31,042.04/x
  3. Step 3: Cross multiply
    80,959.10x = 121,440.06 × 31,042.04
  4. Step 4: Simplify right side
    80,959.10x = 3,769,746,592.92
  5. Step 5: Solve for x
    x = 3,769,746,592.92/80,959.10
  6. Step 6: Final answer
    x = 46,563.60

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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.