Home / 72,144.44-99,559.82-40,314.68

Finding the Fourth Proportional to 72,144.44, 99,559.82 and 40,314.68

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Solution

The fourth proportional to 72,144.44, 99,559.82 and 40,314.68 is: 55,634.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,144.44 : 99,559.82 = 40,314.68 : x
  2. Step 2: Convert to fraction form
    72,144.44/99,559.82 = 40,314.68/x
  3. Step 3: Cross multiply
    72,144.44x = 99,559.82 × 40,314.68
  4. Step 4: Simplify right side
    72,144.44x = 4,013,722,284.16
  5. Step 5: Solve for x
    x = 4,013,722,284.16/72,144.44
  6. Step 6: Final answer
    x = 55,634.53

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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.