Home / 74,274.90-102,505.84-40,747.38

Finding the Fourth Proportional to 74,274.90, 102,505.84 and 40,747.38

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Solution

The fourth proportional to 74,274.90, 102,505.84 and 40,747.38 is: 56,234.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,274.90 : 102,505.84 = 40,747.38 : x
  2. Step 2: Convert to fraction form
    74,274.90/102,505.84 = 40,747.38/x
  3. Step 3: Cross multiply
    74,274.90x = 102,505.84 × 40,747.38
  4. Step 4: Simplify right side
    74,274.90x = 4,176,844,414.70
  5. Step 5: Solve for x
    x = 4,176,844,414.70/74,274.90
  6. Step 6: Final answer
    x = 56,234.94

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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.