Home / 71,960.94-99,306.53-40,131.85

Finding the Fourth Proportional to 71,960.94, 99,306.53 and 40,131.85

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Solution

The fourth proportional to 71,960.94, 99,306.53 and 40,131.85 is: 55,382.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,960.94 : 99,306.53 = 40,131.85 : x
  2. Step 2: Convert to fraction form
    71,960.94/99,306.53 = 40,131.85/x
  3. Step 3: Cross multiply
    71,960.94x = 99,306.53 × 40,131.85
  4. Step 4: Simplify right side
    71,960.94x = 3,985,354,765.98
  5. Step 5: Solve for x
    x = 3,985,354,765.98/71,960.94
  6. Step 6: Final answer
    x = 55,382.19

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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.