Home / 54,315.90-81,279.45-49,650.30

Finding the Fourth Proportional to 54,315.90, 81,279.45 and 49,650.30

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Solution

The fourth proportional to 54,315.90, 81,279.45 and 49,650.30 is: 74,297.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,315.90 : 81,279.45 = 49,650.30 : x
  2. Step 2: Convert to fraction form
    54,315.90/81,279.45 = 49,650.30/x
  3. Step 3: Cross multiply
    54,315.90x = 81,279.45 × 49,650.30
  4. Step 4: Simplify right side
    54,315.90x = 4,035,549,076.34
  5. Step 5: Solve for x
    x = 4,035,549,076.34/54,315.90
  6. Step 6: Final answer
    x = 74,297.75

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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.