Home / 81,517.16-112,500.20-45,222.19

Finding the Fourth Proportional to 81,517.16, 112,500.20 and 45,222.19

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Solution

The fourth proportional to 81,517.16, 112,500.20 and 45,222.19 is: 62,410.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,517.16 : 112,500.20 = 45,222.19 : x
  2. Step 2: Convert to fraction form
    81,517.16/112,500.20 = 45,222.19/x
  3. Step 3: Cross multiply
    81,517.16x = 112,500.20 × 45,222.19
  4. Step 4: Simplify right side
    81,517.16x = 5,087,504,856.94
  5. Step 5: Solve for x
    x = 5,087,504,856.94/81,517.16
  6. Step 6: Final answer
    x = 62,410.23

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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.