Home / 53,654.15-80,449.60-20,376.56

Finding the Fourth Proportional to 53,654.15, 80,449.60 and 20,376.56

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Solution

The fourth proportional to 53,654.15, 80,449.60 and 20,376.56 is: 30,552.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,654.15 : 80,449.60 = 20,376.56 : x
  2. Step 2: Convert to fraction form
    53,654.15/80,449.60 = 20,376.56/x
  3. Step 3: Cross multiply
    53,654.15x = 80,449.60 × 20,376.56
  4. Step 4: Simplify right side
    53,654.15x = 1,639,286,101.38
  5. Step 5: Solve for x
    x = 1,639,286,101.38/53,654.15
  6. Step 6: Final answer
    x = 30,552.83

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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.