Home / 45,947.20-68,920.80-19,654.60

Finding the Fourth Proportional to 45,947.20, 68,920.80 and 19,654.60

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Solution

The fourth proportional to 45,947.20, 68,920.80 and 19,654.60 is: 29,481.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,947.20 : 68,920.80 = 19,654.60 : x
  2. Step 2: Convert to fraction form
    45,947.20/68,920.80 = 19,654.60/x
  3. Step 3: Cross multiply
    45,947.20x = 68,920.80 × 19,654.60
  4. Step 4: Simplify right side
    45,947.20x = 1,354,610,755.68
  5. Step 5: Solve for x
    x = 1,354,610,755.68/45,947.20
  6. Step 6: Final answer
    x = 29,481.90

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1.5x scale

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.