Home / 53,795.52-80,661.45-20,517.87

Finding the Fourth Proportional to 53,795.52, 80,661.45 and 20,517.87

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Solution

The fourth proportional to 53,795.52, 80,661.45 and 20,517.87 is: 30,764.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,795.52 : 80,661.45 = 20,517.87 : x
  2. Step 2: Convert to fraction form
    53,795.52/80,661.45 = 20,517.87/x
  3. Step 3: Cross multiply
    53,795.52x = 80,661.45 × 20,517.87
  4. Step 4: Simplify right side
    53,795.52x = 1,655,001,145.11
  5. Step 5: Solve for x
    x = 1,655,001,145.11/53,795.52
  6. Step 6: Final answer
    x = 30,764.66

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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.