Home / 65,623.78-98,451.35-21,250.59

Finding the Fourth Proportional to 65,623.78, 98,451.35 and 21,250.59

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Solution

The fourth proportional to 65,623.78, 98,451.35 and 21,250.59 is: 31,880.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,623.78 : 98,451.35 = 21,250.59 : x
  2. Step 2: Convert to fraction form
    65,623.78/98,451.35 = 21,250.59/x
  3. Step 3: Cross multiply
    65,623.78x = 98,451.35 × 21,250.59
  4. Step 4: Simplify right side
    65,623.78x = 2,092,149,273.80
  5. Step 5: Solve for x
    x = 2,092,149,273.80/65,623.78
  6. Step 6: Final answer
    x = 31,880.96

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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.