Home / 80,127.08-120,086.94-38,551.40

Finding the Fourth Proportional to 80,127.08, 120,086.94 and 38,551.40

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Solution

The fourth proportional to 80,127.08, 120,086.94 and 38,551.40 is: 57,777.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,127.08 : 120,086.94 = 38,551.40 : x
  2. Step 2: Convert to fraction form
    80,127.08/120,086.94 = 38,551.40/x
  3. Step 3: Cross multiply
    80,127.08x = 120,086.94 × 38,551.40
  4. Step 4: Simplify right side
    80,127.08x = 4,629,519,658.72
  5. Step 5: Solve for x
    x = 4,629,519,658.72/80,127.08
  6. Step 6: Final answer
    x = 57,777.22

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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.