Home / 65,291.20-97,821.60-53,540.80

Finding the Fourth Proportional to 65,291.20, 97,821.60 and 53,540.80

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Solution

The fourth proportional to 65,291.20, 97,821.60 and 53,540.80 is: 80,216.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,291.20 : 97,821.60 = 53,540.80 : x
  2. Step 2: Convert to fraction form
    65,291.20/97,821.60 = 53,540.80/x
  3. Step 3: Cross multiply
    65,291.20x = 97,821.60 × 53,540.80
  4. Step 4: Simplify right side
    65,291.20x = 5,237,446,721.28
  5. Step 5: Solve for x
    x = 5,237,446,721.28/65,291.20
  6. Step 6: Final answer
    x = 80,216.73

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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.