Home / 81,277.68-112,180.75-49,456.82

Finding the Fourth Proportional to 81,277.68, 112,180.75 and 49,456.82

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Solution

The fourth proportional to 81,277.68, 112,180.75 and 49,456.82 is: 68,261.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,277.68 : 112,180.75 = 49,456.82 : x
  2. Step 2: Convert to fraction form
    81,277.68/112,180.75 = 49,456.82/x
  3. Step 3: Cross multiply
    81,277.68x = 112,180.75 × 49,456.82
  4. Step 4: Simplify right side
    81,277.68x = 5,548,103,160.22
  5. Step 5: Solve for x
    x = 5,548,103,160.22/81,277.68
  6. Step 6: Final answer
    x = 68,261.09

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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.