Home / 71,466.60-98,629.97-39,645.75

Finding the Fourth Proportional to 71,466.60, 98,629.97 and 39,645.75

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Solution

The fourth proportional to 71,466.60, 98,629.97 and 39,645.75 is: 54,714.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,466.60 : 98,629.97 = 39,645.75 : x
  2. Step 2: Convert to fraction form
    71,466.60/98,629.97 = 39,645.75/x
  3. Step 3: Cross multiply
    71,466.60x = 98,629.97 × 39,645.75
  4. Step 4: Simplify right side
    71,466.60x = 3,910,258,934.90
  5. Step 5: Solve for x
    x = 3,910,258,934.90/71,466.60
  6. Step 6: Final answer
    x = 54,714.50

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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.