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Finding the Fourth Proportional to 80,893.92, 111,633.76 and 45,083.20

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Solution

The fourth proportional to 80,893.92, 111,633.76 and 45,083.20 is: 62,214.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,893.92 : 111,633.76 = 45,083.20 : x
  2. Step 2: Convert to fraction form
    80,893.92/111,633.76 = 45,083.20/x
  3. Step 3: Cross multiply
    80,893.92x = 111,633.76 × 45,083.20
  4. Step 4: Simplify right side
    80,893.92x = 5,032,807,128.83
  5. Step 5: Solve for x
    x = 5,032,807,128.83/80,893.92
  6. Step 6: Final answer
    x = 62,214.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.