Home / 74,819.68-112,280.36-30,454.52

Finding the Fourth Proportional to 74,819.68, 112,280.36 and 30,454.52

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Solution

The fourth proportional to 74,819.68, 112,280.36 and 30,454.52 is: 45,702.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,819.68 : 112,280.36 = 30,454.52 : x
  2. Step 2: Convert to fraction form
    74,819.68/112,280.36 = 30,454.52/x
  3. Step 3: Cross multiply
    74,819.68x = 112,280.36 × 30,454.52
  4. Step 4: Simplify right side
    74,819.68x = 3,419,444,469.23
  5. Step 5: Solve for x
    x = 3,419,444,469.23/74,819.68
  6. Step 6: Final answer
    x = 45,702.47

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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.