Home / 75,140.67-103,694.13-43,311.62

Finding the Fourth Proportional to 75,140.67, 103,694.13 and 43,311.62

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Solution

The fourth proportional to 75,140.67, 103,694.13 and 43,311.62 is: 59,770.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,140.67 : 103,694.13 = 43,311.62 : x
  2. Step 2: Convert to fraction form
    75,140.67/103,694.13 = 43,311.62/x
  3. Step 3: Cross multiply
    75,140.67x = 103,694.13 × 43,311.62
  4. Step 4: Simplify right side
    75,140.67x = 4,491,160,754.79
  5. Step 5: Solve for x
    x = 4,491,160,754.79/75,140.67
  6. Step 6: Final answer
    x = 59,770.04

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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.