Home / 81,329.69-112,304.24-51,165.49

Finding the Fourth Proportional to 81,329.69, 112,304.24 and 51,165.49

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Solution

The fourth proportional to 81,329.69, 112,304.24 and 51,165.49 is: 70,651.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,329.69 : 112,304.24 = 51,165.49 : x
  2. Step 2: Convert to fraction form
    81,329.69/112,304.24 = 51,165.49/x
  3. Step 3: Cross multiply
    81,329.69x = 112,304.24 × 51,165.49
  4. Step 4: Simplify right side
    81,329.69x = 5,746,101,468.68
  5. Step 5: Solve for x
    x = 5,746,101,468.68/81,329.69
  6. Step 6: Final answer
    x = 70,651.95

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Double scale
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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.