Home / 80,899.68-111,589.45-53,675.18

Finding the Fourth Proportional to 80,899.68, 111,589.45 and 53,675.18

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Solution

The fourth proportional to 80,899.68, 111,589.45 and 53,675.18 is: 74,037.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,899.68 : 111,589.45 = 53,675.18 : x
  2. Step 2: Convert to fraction form
    80,899.68/111,589.45 = 53,675.18/x
  3. Step 3: Cross multiply
    80,899.68x = 111,589.45 × 53,675.18
  4. Step 4: Simplify right side
    80,899.68x = 5,989,583,122.72
  5. Step 5: Solve for x
    x = 5,989,583,122.72/80,899.68
  6. Step 6: Final answer
    x = 74,037.17

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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.