Home / 54,001.67-81,004.56-20,725.10

Finding the Fourth Proportional to 54,001.67, 81,004.56 and 20,725.10

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Solution

The fourth proportional to 54,001.67, 81,004.56 and 20,725.10 is: 31,088.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,001.67 : 81,004.56 = 20,725.10 : x
  2. Step 2: Convert to fraction form
    54,001.67/81,004.56 = 20,725.10/x
  3. Step 3: Cross multiply
    54,001.67x = 81,004.56 × 20,725.10
  4. Step 4: Simplify right side
    54,001.67x = 1,678,827,201.43
  5. Step 5: Solve for x
    x = 1,678,827,201.43/54,001.67
  6. Step 6: Final answer
    x = 31,088.43

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1.5x scale

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.