Home / 80,539.60-111,147.24-44,730.04

Finding the Fourth Proportional to 80,539.60, 111,147.24 and 44,730.04

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Solution

The fourth proportional to 80,539.60, 111,147.24 and 44,730.04 is: 61,728.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,539.60 : 111,147.24 = 44,730.04 : x
  2. Step 2: Convert to fraction form
    80,539.60/111,147.24 = 44,730.04/x
  3. Step 3: Cross multiply
    80,539.60x = 111,147.24 × 44,730.04
  4. Step 4: Simplify right side
    80,539.60x = 4,971,620,491.09
  5. Step 5: Solve for x
    x = 4,971,620,491.09/80,539.60
  6. Step 6: Final answer
    x = 61,728.89

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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.