Home / 80,741.40-121,112.10-41,375.40

Finding the Fourth Proportional to 80,741.40, 121,112.10 and 41,375.40

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Solution

The fourth proportional to 80,741.40, 121,112.10 and 41,375.40 is: 62,063.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,741.40 : 121,112.10 = 41,375.40 : x
  2. Step 2: Convert to fraction form
    80,741.40/121,112.10 = 41,375.40/x
  3. Step 3: Cross multiply
    80,741.40x = 121,112.10 × 41,375.40
  4. Step 4: Simplify right side
    80,741.40x = 5,011,061,582.34
  5. Step 5: Solve for x
    x = 5,011,061,582.34/80,741.40
  6. Step 6: Final answer
    x = 62,063.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.