Home / 54,661.56-81,992.40-15,218.76

Finding the Fourth Proportional to 54,661.56, 81,992.40 and 15,218.76

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Solution

The fourth proportional to 54,661.56, 81,992.40 and 15,218.76 is: 22,828.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,661.56 : 81,992.40 = 15,218.76 : x
  2. Step 2: Convert to fraction form
    54,661.56/81,992.40 = 15,218.76/x
  3. Step 3: Cross multiply
    54,661.56x = 81,992.40 × 15,218.76
  4. Step 4: Simplify right side
    54,661.56x = 1,247,822,657.42
  5. Step 5: Solve for x
    x = 1,247,822,657.42/54,661.56
  6. Step 6: Final answer
    x = 22,828.16

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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.