Home / 40,777.60-61,159.68-38,120.96

Finding the Fourth Proportional to 40,777.60, 61,159.68 and 38,120.96

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Solution

The fourth proportional to 40,777.60, 61,159.68 and 38,120.96 is: 57,175.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,777.60 : 61,159.68 = 38,120.96 : x
  2. Step 2: Convert to fraction form
    40,777.60/61,159.68 = 38,120.96/x
  3. Step 3: Cross multiply
    40,777.60x = 61,159.68 × 38,120.96
  4. Step 4: Simplify right side
    40,777.60x = 2,331,465,714.89
  5. Step 5: Solve for x
    x = 2,331,465,714.89/40,777.60
  6. Step 6: Final answer
    x = 57,175.16

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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.