Home / 54,001.17-81,003.80-20,724.60

Finding the Fourth Proportional to 54,001.17, 81,003.80 and 20,724.60

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Solution

The fourth proportional to 54,001.17, 81,003.80 and 20,724.60 is: 31,087.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,001.17 : 81,003.80 = 20,724.60 : x
  2. Step 2: Convert to fraction form
    54,001.17/81,003.80 = 20,724.60/x
  3. Step 3: Cross multiply
    54,001.17x = 81,003.80 × 20,724.60
  4. Step 4: Simplify right side
    54,001.17x = 1,678,771,353.48
  5. Step 5: Solve for x
    x = 1,678,771,353.48/54,001.17
  6. Step 6: Final answer
    x = 31,087.68

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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.