Home / 51,541.71-71,129.30-49,179.75

Finding the Fourth Proportional to 51,541.71, 71,129.30 and 49,179.75

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Solution

The fourth proportional to 51,541.71, 71,129.30 and 49,179.75 is: 67,869.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,541.71 : 71,129.30 = 49,179.75 : x
  2. Step 2: Convert to fraction form
    51,541.71/71,129.30 = 49,179.75/x
  3. Step 3: Cross multiply
    51,541.71x = 71,129.30 × 49,179.75
  4. Step 4: Simplify right side
    51,541.71x = 3,498,121,191.68
  5. Step 5: Solve for x
    x = 3,498,121,191.68/51,541.71
  6. Step 6: Final answer
    x = 67,869.72

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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.