Home / 54,862.32-81,811.74-54,363.36

Finding the Fourth Proportional to 54,862.32, 81,811.74 and 54,363.36

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Solution

The fourth proportional to 54,862.32, 81,811.74 and 54,363.36 is: 81,067.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,862.32 : 81,811.74 = 54,363.36 : x
  2. Step 2: Convert to fraction form
    54,862.32/81,811.74 = 54,363.36/x
  3. Step 3: Cross multiply
    54,862.32x = 81,811.74 × 54,363.36
  4. Step 4: Simplify right side
    54,862.32x = 4,447,561,073.85
  5. Step 5: Solve for x
    x = 4,447,561,073.85/54,862.32
  6. Step 6: Final answer
    x = 81,067.68

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.