Home / 54,458.15-81,692.26-21,180.74

Finding the Fourth Proportional to 54,458.15, 81,692.26 and 21,180.74

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Solution

The fourth proportional to 54,458.15, 81,692.26 and 21,180.74 is: 31,773.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,458.15 : 81,692.26 = 21,180.74 : x
  2. Step 2: Convert to fraction form
    54,458.15/81,692.26 = 21,180.74/x
  3. Step 3: Cross multiply
    54,458.15x = 81,692.26 × 21,180.74
  4. Step 4: Simplify right side
    54,458.15x = 1,730,302,057.66
  5. Step 5: Solve for x
    x = 1,730,302,057.66/54,458.15
  6. Step 6: Final answer
    x = 31,773.06

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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.