Home / 65,839.48-98,734.38-21,455.80

Finding the Fourth Proportional to 65,839.48, 98,734.38 and 21,455.80

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Solution

The fourth proportional to 65,839.48, 98,734.38 and 21,455.80 is: 32,175.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,839.48 : 98,734.38 = 21,455.80 : x
  2. Step 2: Convert to fraction form
    65,839.48/98,734.38 = 21,455.80/x
  3. Step 3: Cross multiply
    65,839.48x = 98,734.38 × 21,455.80
  4. Step 4: Simplify right side
    65,839.48x = 2,118,425,110.40
  5. Step 5: Solve for x
    x = 2,118,425,110.40/65,839.48
  6. Step 6: Final answer
    x = 32,175.61

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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.