Home / 40,687.31-61,030.56-11,105.15

Finding the Fourth Proportional to 40,687.31, 61,030.56 and 11,105.15

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Solution

The fourth proportional to 40,687.31, 61,030.56 and 11,105.15 is: 16,657.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,687.31 : 61,030.56 = 11,105.15 : x
  2. Step 2: Convert to fraction form
    40,687.31/61,030.56 = 11,105.15/x
  3. Step 3: Cross multiply
    40,687.31x = 61,030.56 × 11,105.15
  4. Step 4: Simplify right side
    40,687.31x = 677,753,603.17
  5. Step 5: Solve for x
    x = 677,753,603.17/40,687.31
  6. Step 6: Final answer
    x = 16,657.62

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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.