Home / 79,135.10-109,207.74-43,324.52

Finding the Fourth Proportional to 79,135.10, 109,207.74 and 43,324.52

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Solution

The fourth proportional to 79,135.10, 109,207.74 and 43,324.52 is: 59,788.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,135.10 : 109,207.74 = 43,324.52 : x
  2. Step 2: Convert to fraction form
    79,135.10/109,207.74 = 43,324.52/x
  3. Step 3: Cross multiply
    79,135.10x = 109,207.74 × 43,324.52
  4. Step 4: Simplify right side
    79,135.10x = 4,731,372,915.78
  5. Step 5: Solve for x
    x = 4,731,372,915.78/79,135.10
  6. Step 6: Final answer
    x = 59,788.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.