Home / 80,734.94-111,402.36-48,462.72

Finding the Fourth Proportional to 80,734.94, 111,402.36 and 48,462.72

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Solution

The fourth proportional to 80,734.94, 111,402.36 and 48,462.72 is: 66,871.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,734.94 : 111,402.36 = 48,462.72 : x
  2. Step 2: Convert to fraction form
    80,734.94/111,402.36 = 48,462.72/x
  3. Step 3: Cross multiply
    80,734.94x = 111,402.36 × 48,462.72
  4. Step 4: Simplify right side
    80,734.94x = 5,398,861,380.02
  5. Step 5: Solve for x
    x = 5,398,861,380.02/80,734.94
  6. Step 6: Final answer
    x = 66,871.44

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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.