Home / 53,731.54-80,597.25-18,671.20

Finding the Fourth Proportional to 53,731.54, 80,597.25 and 18,671.20

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Solution

The fourth proportional to 53,731.54, 80,597.25 and 18,671.20 is: 28,006.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,731.54 : 80,597.25 = 18,671.20 : x
  2. Step 2: Convert to fraction form
    53,731.54/80,597.25 = 18,671.20/x
  3. Step 3: Cross multiply
    53,731.54x = 80,597.25 × 18,671.20
  4. Step 4: Simplify right side
    53,731.54x = 1,504,847,374.20
  5. Step 5: Solve for x
    x = 1,504,847,374.20/53,731.54
  6. Step 6: Final answer
    x = 28,006.78

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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.