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Finding the Fourth Proportional to 81,775.52, 112,844.56 and 45,970.92

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Solution

The fourth proportional to 81,775.52, 112,844.56 and 45,970.92 is: 63,436.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,775.52 : 112,844.56 = 45,970.92 : x
  2. Step 2: Convert to fraction form
    81,775.52/112,844.56 = 45,970.92/x
  3. Step 3: Cross multiply
    81,775.52x = 112,844.56 × 45,970.92
  4. Step 4: Simplify right side
    81,775.52x = 5,187,568,240.20
  5. Step 5: Solve for x
    x = 5,187,568,240.20/81,775.52
  6. Step 6: Final answer
    x = 63,436.69

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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.