Home / 81,324.29-112,217.45-45,505.28

Finding the Fourth Proportional to 81,324.29, 112,217.45 and 45,505.28

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Solution

The fourth proportional to 81,324.29, 112,217.45 and 45,505.28 is: 62,791.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,324.29 : 112,217.45 = 45,505.28 : x
  2. Step 2: Convert to fraction form
    81,324.29/112,217.45 = 45,505.28/x
  3. Step 3: Cross multiply
    81,324.29x = 112,217.45 × 45,505.28
  4. Step 4: Simplify right side
    81,324.29x = 5,106,485,694.52
  5. Step 5: Solve for x
    x = 5,106,485,694.52/81,324.29
  6. Step 6: Final answer
    x = 62,791.65

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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.