Home / 56,942.90-85,414.35-54,221.30

Finding the Fourth Proportional to 56,942.90, 85,414.35 and 54,221.30

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Solution

The fourth proportional to 56,942.90, 85,414.35 and 54,221.30 is: 81,331.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,942.90 : 85,414.35 = 54,221.30 : x
  2. Step 2: Convert to fraction form
    56,942.90/85,414.35 = 54,221.30/x
  3. Step 3: Cross multiply
    56,942.90x = 85,414.35 × 54,221.30
  4. Step 4: Simplify right side
    56,942.90x = 4,631,277,095.66
  5. Step 5: Solve for x
    x = 4,631,277,095.66/56,942.90
  6. Step 6: Final answer
    x = 81,331.95

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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.