Home / 75,172.82-112,750.59-19,773.14

Finding the Fourth Proportional to 75,172.82, 112,750.59 and 19,773.14

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Solution

The fourth proportional to 75,172.82, 112,750.59 and 19,773.14 is: 29,657.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,172.82 : 112,750.59 = 19,773.14 : x
  2. Step 2: Convert to fraction form
    75,172.82/112,750.59 = 19,773.14/x
  3. Step 3: Cross multiply
    75,172.82x = 112,750.59 × 19,773.14
  4. Step 4: Simplify right side
    75,172.82x = 2,229,433,201.15
  5. Step 5: Solve for x
    x = 2,229,433,201.15/75,172.82
  6. Step 6: Final answer
    x = 29,657.44

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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.