Home / 74,747.22-103,151.12-40,755.72

Finding the Fourth Proportional to 74,747.22, 103,151.12 and 40,755.72

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Solution

The fourth proportional to 74,747.22, 103,151.12 and 40,755.72 is: 56,242.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,747.22 : 103,151.12 = 40,755.72 : x
  2. Step 2: Convert to fraction form
    74,747.22/103,151.12 = 40,755.72/x
  3. Step 3: Cross multiply
    74,747.22x = 103,151.12 × 40,755.72
  4. Step 4: Simplify right side
    74,747.22x = 4,203,998,164.41
  5. Step 5: Solve for x
    x = 4,203,998,164.41/74,747.22
  6. Step 6: Final answer
    x = 56,242.87

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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.