Home / 81,905.30-113,064.19-55,063.38

Finding the Fourth Proportional to 81,905.30, 113,064.19 and 55,063.38

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Solution

The fourth proportional to 81,905.30, 113,064.19 and 55,063.38 is: 76,010.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,905.30 : 113,064.19 = 55,063.38 : x
  2. Step 2: Convert to fraction form
    81,905.30/113,064.19 = 55,063.38/x
  3. Step 3: Cross multiply
    81,905.30x = 113,064.19 × 55,063.38
  4. Step 4: Simplify right side
    81,905.30x = 6,225,695,790.72
  5. Step 5: Solve for x
    x = 6,225,695,790.72/81,905.30
  6. Step 6: Final answer
    x = 76,010.90

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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.