Home / 78,822.23-108,773.78-43,012.85

Finding the Fourth Proportional to 78,822.23, 108,773.78 and 43,012.85

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Solution

The fourth proportional to 78,822.23, 108,773.78 and 43,012.85 is: 59,357.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,822.23 : 108,773.78 = 43,012.85 : x
  2. Step 2: Convert to fraction form
    78,822.23/108,773.78 = 43,012.85/x
  3. Step 3: Cross multiply
    78,822.23x = 108,773.78 × 43,012.85
  4. Step 4: Simplify right side
    78,822.23x = 4,678,669,524.14
  5. Step 5: Solve for x
    x = 4,678,669,524.14/78,822.23
  6. Step 6: Final answer
    x = 59,357.24

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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.