Home / 40,065.92-60,102.12-13,770.68

Finding the Fourth Proportional to 40,065.92, 60,102.12 and 13,770.68

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Solution

The fourth proportional to 40,065.92, 60,102.12 and 13,770.68 is: 20,657.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,065.92 : 60,102.12 = 13,770.68 : x
  2. Step 2: Convert to fraction form
    40,065.92/60,102.12 = 13,770.68/x
  3. Step 3: Cross multiply
    40,065.92x = 60,102.12 × 13,770.68
  4. Step 4: Simplify right side
    40,065.92x = 827,647,061.84
  5. Step 5: Solve for x
    x = 827,647,061.84/40,065.92
  6. Step 6: Final answer
    x = 20,657.13

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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.