Home / 81,236.73-112,107.06-45,426.76

Finding the Fourth Proportional to 81,236.73, 112,107.06 and 45,426.76

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Solution

The fourth proportional to 81,236.73, 112,107.06 and 45,426.76 is: 62,689.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,236.73 : 112,107.06 = 45,426.76 : x
  2. Step 2: Convert to fraction form
    81,236.73/112,107.06 = 45,426.76/x
  3. Step 3: Cross multiply
    81,236.73x = 112,107.06 × 45,426.76
  4. Step 4: Simplify right side
    81,236.73x = 5,092,660,508.93
  5. Step 5: Solve for x
    x = 5,092,660,508.93/81,236.73
  6. Step 6: Final answer
    x = 62,689.14

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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.