Home / 54,469.76-81,686.26-20,727.77

Finding the Fourth Proportional to 54,469.76, 81,686.26 and 20,727.77

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Solution

The fourth proportional to 54,469.76, 81,686.26 and 20,727.77 is: 31,084.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,469.76 : 81,686.26 = 20,727.77 : x
  2. Step 2: Convert to fraction form
    54,469.76/81,686.26 = 20,727.77/x
  3. Step 3: Cross multiply
    54,469.76x = 81,686.26 × 20,727.77
  4. Step 4: Simplify right side
    54,469.76x = 1,693,173,685.22
  5. Step 5: Solve for x
    x = 1,693,173,685.22/54,469.76
  6. Step 6: Final answer
    x = 31,084.66

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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.