Home / 76,691.08-115,089.18-26,771.19

Finding the Fourth Proportional to 76,691.08, 115,089.18 and 26,771.19

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Solution

The fourth proportional to 76,691.08, 115,089.18 and 26,771.19 is: 40,175.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,691.08 : 115,089.18 = 26,771.19 : x
  2. Step 2: Convert to fraction form
    76,691.08/115,089.18 = 26,771.19/x
  3. Step 3: Cross multiply
    76,691.08x = 115,089.18 × 26,771.19
  4. Step 4: Simplify right side
    76,691.08x = 3,081,074,171.73
  5. Step 5: Solve for x
    x = 3,081,074,171.73/76,691.08
  6. Step 6: Final answer
    x = 40,175.13

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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.