Home / 92,777.17-138,930.24-77,744.79

Finding the Fourth Proportional to 92,777.17, 138,930.24 and 77,744.79

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Solution

The fourth proportional to 92,777.17, 138,930.24 and 77,744.79 is: 116,419.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,777.17 : 138,930.24 = 77,744.79 : x
  2. Step 2: Convert to fraction form
    92,777.17/138,930.24 = 77,744.79/x
  3. Step 3: Cross multiply
    92,777.17x = 138,930.24 × 77,744.79
  4. Step 4: Simplify right side
    92,777.17x = 10,801,102,333.45
  5. Step 5: Solve for x
    x = 10,801,102,333.45/92,777.17
  6. Step 6: Final answer
    x = 116,419.83

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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.