Home / 53,854.12-80,768.62-20,561.96

Finding the Fourth Proportional to 53,854.12, 80,768.62 and 20,561.96

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Solution

The fourth proportional to 53,854.12, 80,768.62 and 20,561.96 is: 30,838.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,854.12 : 80,768.62 = 20,561.96 : x
  2. Step 2: Convert to fraction form
    53,854.12/80,768.62 = 20,561.96/x
  3. Step 3: Cross multiply
    53,854.12x = 80,768.62 × 20,561.96
  4. Step 4: Simplify right side
    53,854.12x = 1,660,761,133.70
  5. Step 5: Solve for x
    x = 1,660,761,133.70/53,854.12
  6. Step 6: Final answer
    x = 30,838.14

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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.