Home / 80,837.60-111,563.04-45,026.72

Finding the Fourth Proportional to 80,837.60, 111,563.04 and 45,026.72

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Solution

The fourth proportional to 80,837.60, 111,563.04 and 45,026.72 is: 62,140.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,837.60 : 111,563.04 = 45,026.72 : x
  2. Step 2: Convert to fraction form
    80,837.60/111,563.04 = 45,026.72/x
  3. Step 3: Cross multiply
    80,837.60x = 111,563.04 × 45,026.72
  4. Step 4: Simplify right side
    80,837.60x = 5,023,317,764.43
  5. Step 5: Solve for x
    x = 5,023,317,764.43/80,837.60
  6. Step 6: Final answer
    x = 62,140.86

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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.