Home / 54,758.43-81,989.24-28,407.82

Finding the Fourth Proportional to 54,758.43, 81,989.24 and 28,407.82

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Solution

The fourth proportional to 54,758.43, 81,989.24 and 28,407.82 is: 42,534.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,758.43 : 81,989.24 = 28,407.82 : x
  2. Step 2: Convert to fraction form
    54,758.43/81,989.24 = 28,407.82/x
  3. Step 3: Cross multiply
    54,758.43x = 81,989.24 × 28,407.82
  4. Step 4: Simplify right side
    54,758.43x = 2,329,135,019.87
  5. Step 5: Solve for x
    x = 2,329,135,019.87/54,758.43
  6. Step 6: Final answer
    x = 42,534.73

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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.