Home / 80,934.71-111,690.50-45,127.04

Finding the Fourth Proportional to 80,934.71, 111,690.50 and 45,127.04

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Solution

The fourth proportional to 80,934.71, 111,690.50 and 45,127.04 is: 62,275.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,934.71 : 111,690.50 = 45,127.04 : x
  2. Step 2: Convert to fraction form
    80,934.71/111,690.50 = 45,127.04/x
  3. Step 3: Cross multiply
    80,934.71x = 111,690.50 × 45,127.04
  4. Step 4: Simplify right side
    80,934.71x = 5,040,260,877.03
  5. Step 5: Solve for x
    x = 5,040,260,877.03/80,934.71
  6. Step 6: Final answer
    x = 62,275.64

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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.