Home / 54,260.60-81,390.90-38,514.20

Finding the Fourth Proportional to 54,260.60, 81,390.90 and 38,514.20

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Solution

The fourth proportional to 54,260.60, 81,390.90 and 38,514.20 is: 57,771.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,260.60 : 81,390.90 = 38,514.20 : x
  2. Step 2: Convert to fraction form
    54,260.60/81,390.90 = 38,514.20/x
  3. Step 3: Cross multiply
    54,260.60x = 81,390.90 × 38,514.20
  4. Step 4: Simplify right side
    54,260.60x = 3,134,705,400.78
  5. Step 5: Solve for x
    x = 3,134,705,400.78/54,260.60
  6. Step 6: Final answer
    x = 57,771.30

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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.