Home / 72,074.88-99,463.14-40,251.33

Finding the Fourth Proportional to 72,074.88, 99,463.14 and 40,251.33

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Solution

The fourth proportional to 72,074.88, 99,463.14 and 40,251.33 is: 55,546.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,074.88 : 99,463.14 = 40,251.33 : x
  2. Step 2: Convert to fraction form
    72,074.88/99,463.14 = 40,251.33/x
  3. Step 3: Cross multiply
    72,074.88x = 99,463.14 × 40,251.33
  4. Step 4: Simplify right side
    72,074.88x = 4,003,523,670.98
  5. Step 5: Solve for x
    x = 4,003,523,670.98/72,074.88
  6. Step 6: Final answer
    x = 55,546.73

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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.