Home / 80,507.11-120,803.19-58,502.38

Finding the Fourth Proportional to 80,507.11, 120,803.19 and 58,502.38

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Solution

The fourth proportional to 80,507.11, 120,803.19 and 58,502.38 is: 87,784.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,507.11 : 120,803.19 = 58,502.38 : x
  2. Step 2: Convert to fraction form
    80,507.11/120,803.19 = 58,502.38/x
  3. Step 3: Cross multiply
    80,507.11x = 120,803.19 × 58,502.38
  4. Step 4: Simplify right side
    80,507.11x = 7,067,274,126.59
  5. Step 5: Solve for x
    x = 7,067,274,126.59/80,507.11
  6. Step 6: Final answer
    x = 87,784.47

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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.