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Finding the Fourth Proportional to 65,850.99, 98,766.46 and 21,477.68

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Solution

The fourth proportional to 65,850.99, 98,766.46 and 21,477.68 is: 32,213.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,850.99 : 98,766.46 = 21,477.68 : x
  2. Step 2: Convert to fraction form
    65,850.99/98,766.46 = 21,477.68/x
  3. Step 3: Cross multiply
    65,850.99x = 98,766.46 × 21,477.68
  4. Step 4: Simplify right side
    65,850.99x = 2,121,274,422.61
  5. Step 5: Solve for x
    x = 2,121,274,422.61/65,850.99
  6. Step 6: Final answer
    x = 32,213.25

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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.