Home / 80,934.97-111,690.39-45,127.25

Finding the Fourth Proportional to 80,934.97, 111,690.39 and 45,127.25

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Solution

The fourth proportional to 80,934.97, 111,690.39 and 45,127.25 is: 62,275.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,934.97 : 111,690.39 = 45,127.25 : x
  2. Step 2: Convert to fraction form
    80,934.97/111,690.39 = 45,127.25/x
  3. Step 3: Cross multiply
    80,934.97x = 111,690.39 × 45,127.25
  4. Step 4: Simplify right side
    80,934.97x = 5,040,280,495.87
  5. Step 5: Solve for x
    x = 5,040,280,495.87/80,934.97
  6. Step 6: Final answer
    x = 62,275.68

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1.5x scale

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.