Home / 71,992.29-99,349.56-40,163.22

Finding the Fourth Proportional to 71,992.29, 99,349.56 and 40,163.22

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Solution

The fourth proportional to 71,992.29, 99,349.56 and 40,163.22 is: 55,425.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,992.29 : 99,349.56 = 40,163.22 : x
  2. Step 2: Convert to fraction form
    71,992.29/99,349.56 = 40,163.22/x
  3. Step 3: Cross multiply
    71,992.29x = 99,349.56 × 40,163.22
  4. Step 4: Simplify right side
    71,992.29x = 3,990,198,235.18
  5. Step 5: Solve for x
    x = 3,990,198,235.18/71,992.29
  6. Step 6: Final answer
    x = 55,425.36

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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.