Home / 68,531.32-102,799.14-18,611.29

Finding the Fourth Proportional to 68,531.32, 102,799.14 and 18,611.29

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Solution

The fourth proportional to 68,531.32, 102,799.14 and 18,611.29 is: 27,917.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,531.32 : 102,799.14 = 18,611.29 : x
  2. Step 2: Convert to fraction form
    68,531.32/102,799.14 = 18,611.29/x
  3. Step 3: Cross multiply
    68,531.32x = 102,799.14 × 18,611.29
  4. Step 4: Simplify right side
    68,531.32x = 1,913,224,606.29
  5. Step 5: Solve for x
    x = 1,913,224,606.29/68,531.32
  6. Step 6: Final answer
    x = 27,917.52

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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.