Home / 74,402.20-102,675.55-40,410.75

Finding the Fourth Proportional to 74,402.20, 102,675.55 and 40,410.75

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Solution

The fourth proportional to 74,402.20, 102,675.55 and 40,410.75 is: 55,767.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,402.20 : 102,675.55 = 40,410.75 : x
  2. Step 2: Convert to fraction form
    74,402.20/102,675.55 = 40,410.75/x
  3. Step 3: Cross multiply
    74,402.20x = 102,675.55 × 40,410.75
  4. Step 4: Simplify right side
    74,402.20x = 4,149,195,764.39
  5. Step 5: Solve for x
    x = 4,149,195,764.39/74,402.20
  6. Step 6: Final answer
    x = 55,767.11

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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.