Home / 71,480.20-98,635.65-39,648.46

Finding the Fourth Proportional to 71,480.20, 98,635.65 and 39,648.46

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Solution

The fourth proportional to 71,480.20, 98,635.65 and 39,648.46 is: 54,710.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,480.20 : 98,635.65 = 39,648.46 : x
  2. Step 2: Convert to fraction form
    71,480.20/98,635.65 = 39,648.46/x
  3. Step 3: Cross multiply
    71,480.20x = 98,635.65 × 39,648.46
  4. Step 4: Simplify right side
    71,480.20x = 3,910,751,623.60
  5. Step 5: Solve for x
    x = 3,910,751,623.60/71,480.20
  6. Step 6: Final answer
    x = 54,710.98

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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.