Home / 54,150.90-81,237.27-19,115.16

Finding the Fourth Proportional to 54,150.90, 81,237.27 and 19,115.16

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Solution

The fourth proportional to 54,150.90, 81,237.27 and 19,115.16 is: 28,676.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,150.90 : 81,237.27 = 19,115.16 : x
  2. Step 2: Convert to fraction form
    54,150.90/81,237.27 = 19,115.16/x
  3. Step 3: Cross multiply
    54,150.90x = 81,237.27 × 19,115.16
  4. Step 4: Simplify right side
    54,150.90x = 1,552,863,414.01
  5. Step 5: Solve for x
    x = 1,552,863,414.01/54,150.90
  6. Step 6: Final answer
    x = 28,676.59

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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.