Home / 71,950.32-99,286.56-40,121.04

Finding the Fourth Proportional to 71,950.32, 99,286.56 and 40,121.04

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Solution

The fourth proportional to 71,950.32, 99,286.56 and 40,121.04 is: 55,364.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,950.32 : 99,286.56 = 40,121.04 : x
  2. Step 2: Convert to fraction form
    71,950.32/99,286.56 = 40,121.04/x
  3. Step 3: Cross multiply
    71,950.32x = 99,286.56 × 40,121.04
  4. Step 4: Simplify right side
    71,950.32x = 3,983,480,045.22
  5. Step 5: Solve for x
    x = 3,983,480,045.22/71,950.32
  6. Step 6: Final answer
    x = 55,364.31

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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.