Home / 74,805.39-112,111.14-30,380.54

Finding the Fourth Proportional to 74,805.39, 112,111.14 and 30,380.54

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Solution

The fourth proportional to 74,805.39, 112,111.14 and 30,380.54 is: 45,531.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,805.39 : 112,111.14 = 30,380.54 : x
  2. Step 2: Convert to fraction form
    74,805.39/112,111.14 = 30,380.54/x
  3. Step 3: Cross multiply
    74,805.39x = 112,111.14 × 30,380.54
  4. Step 4: Simplify right side
    74,805.39x = 3,405,996,298.73
  5. Step 5: Solve for x
    x = 3,405,996,298.73/74,805.39
  6. Step 6: Final answer
    x = 45,531.43

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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.