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Finding the Fourth Proportional to 65,645.64, 98,400.42 and 30,556.44

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Solution

The fourth proportional to 65,645.64, 98,400.42 and 30,556.44 is: 45,802.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,645.64 : 98,400.42 = 30,556.44 : x
  2. Step 2: Convert to fraction form
    65,645.64/98,400.42 = 30,556.44/x
  3. Step 3: Cross multiply
    65,645.64x = 98,400.42 × 30,556.44
  4. Step 4: Simplify right side
    65,645.64x = 3,006,766,529.70
  5. Step 5: Solve for x
    x = 3,006,766,529.70/65,645.64
  6. Step 6: Final answer
    x = 45,802.99

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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.