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Finding the Fourth Proportional to 81,773.80, 112,846.50 and 45,473.80

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Solution

The fourth proportional to 81,773.80, 112,846.50 and 45,473.80 is: 62,753.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,773.80 : 112,846.50 = 45,473.80 : x
  2. Step 2: Convert to fraction form
    81,773.80/112,846.50 = 45,473.80/x
  3. Step 3: Cross multiply
    81,773.80x = 112,846.50 × 45,473.80
  4. Step 4: Simplify right side
    81,773.80x = 5,131,559,171.70
  5. Step 5: Solve for x
    x = 5,131,559,171.70/81,773.80
  6. Step 6: Final answer
    x = 62,753.10

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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.