Home / 73,965.25-102,072.05-40,431.25

Finding the Fourth Proportional to 73,965.25, 102,072.05 and 40,431.25

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Solution

The fourth proportional to 73,965.25, 102,072.05 and 40,431.25 is: 55,795.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,965.25 : 102,072.05 = 40,431.25 : x
  2. Step 2: Convert to fraction form
    73,965.25/102,072.05 = 40,431.25/x
  3. Step 3: Cross multiply
    73,965.25x = 102,072.05 × 40,431.25
  4. Step 4: Simplify right side
    73,965.25x = 4,126,900,571.56
  5. Step 5: Solve for x
    x = 4,126,900,571.56/73,965.25
  6. Step 6: Final answer
    x = 55,795.13

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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.