Home / 54,254.09-81,386.56-18,710.72

Finding the Fourth Proportional to 54,254.09, 81,386.56 and 18,710.72

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Solution

The fourth proportional to 54,254.09, 81,386.56 and 18,710.72 is: 28,067.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,254.09 : 81,386.56 = 18,710.72 : x
  2. Step 2: Convert to fraction form
    54,254.09/81,386.56 = 18,710.72/x
  3. Step 3: Cross multiply
    54,254.09x = 81,386.56 × 18,710.72
  4. Step 4: Simplify right side
    54,254.09x = 1,522,801,458.48
  5. Step 5: Solve for x
    x = 1,522,801,458.48/54,254.09
  6. Step 6: Final answer
    x = 28,067.96

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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.