Home / 54,065.27-81,040.50-31,889.09

Finding the Fourth Proportional to 54,065.27, 81,040.50 and 31,889.09

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Solution

The fourth proportional to 54,065.27, 81,040.50 and 31,889.09 is: 47,799.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,065.27 : 81,040.50 = 31,889.09 : x
  2. Step 2: Convert to fraction form
    54,065.27/81,040.50 = 31,889.09/x
  3. Step 3: Cross multiply
    54,065.27x = 81,040.50 × 31,889.09
  4. Step 4: Simplify right side
    54,065.27x = 2,584,308,000.75
  5. Step 5: Solve for x
    x = 2,584,308,000.75/54,065.27
  6. Step 6: Final answer
    x = 47,799.78

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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.