Home / 54,330.60-81,323.10-38,778.60

Finding the Fourth Proportional to 54,330.60, 81,323.10 and 38,778.60

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Solution

The fourth proportional to 54,330.60, 81,323.10 and 38,778.60 is: 58,044.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,330.60 : 81,323.10 = 38,778.60 : x
  2. Step 2: Convert to fraction form
    54,330.60/81,323.10 = 38,778.60/x
  3. Step 3: Cross multiply
    54,330.60x = 81,323.10 × 38,778.60
  4. Step 4: Simplify right side
    54,330.60x = 3,153,595,965.66
  5. Step 5: Solve for x
    x = 3,153,595,965.66/54,330.60
  6. Step 6: Final answer
    x = 58,044.56

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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.