Home / 74,932.28-103,405.34-40,940.04

Finding the Fourth Proportional to 74,932.28, 103,405.34 and 40,940.04

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Solution

The fourth proportional to 74,932.28, 103,405.34 and 40,940.04 is: 56,496.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,932.28 : 103,405.34 = 40,940.04 : x
  2. Step 2: Convert to fraction form
    74,932.28/103,405.34 = 40,940.04/x
  3. Step 3: Cross multiply
    74,932.28x = 103,405.34 × 40,940.04
  4. Step 4: Simplify right side
    74,932.28x = 4,233,418,034.09
  5. Step 5: Solve for x
    x = 4,233,418,034.09/74,932.28
  6. Step 6: Final answer
    x = 56,496.59

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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.