Home / 165,040.78-247,559.20-52,719.52

Finding the Fourth Proportional to 165,040.78, 247,559.20 and 52,719.52

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Solution

The fourth proportional to 165,040.78, 247,559.20 and 52,719.52 is: 79,078.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,040.78 : 247,559.20 = 52,719.52 : x
  2. Step 2: Convert to fraction form
    165,040.78/247,559.20 = 52,719.52/x
  3. Step 3: Cross multiply
    165,040.78x = 247,559.20 × 52,719.52
  4. Step 4: Simplify right side
    165,040.78x = 13,051,202,195.58
  5. Step 5: Solve for x
    x = 13,051,202,195.58/165,040.78
  6. Step 6: Final answer
    x = 79,078.65

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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.