Home / 72,012.44-99,377.28-40,180.66

Finding the Fourth Proportional to 72,012.44, 99,377.28 and 40,180.66

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Solution

The fourth proportional to 72,012.44, 99,377.28 and 40,180.66 is: 55,449.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,012.44 : 99,377.28 = 40,180.66 : x
  2. Step 2: Convert to fraction form
    72,012.44/99,377.28 = 40,180.66/x
  3. Step 3: Cross multiply
    72,012.44x = 99,377.28 × 40,180.66
  4. Step 4: Simplify right side
    72,012.44x = 3,993,044,450.96
  5. Step 5: Solve for x
    x = 3,993,044,450.96/72,012.44
  6. Step 6: Final answer
    x = 55,449.37

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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.