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Finding the Fourth Proportional to 65,041.88, 97,552.60 and 20,662.80

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Solution

The fourth proportional to 65,041.88, 97,552.60 and 20,662.80 is: 30,990.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,041.88 : 97,552.60 = 20,662.80 : x
  2. Step 2: Convert to fraction form
    65,041.88/97,552.60 = 20,662.80/x
  3. Step 3: Cross multiply
    65,041.88x = 97,552.60 × 20,662.80
  4. Step 4: Simplify right side
    65,041.88x = 2,015,709,863.28
  5. Step 5: Solve for x
    x = 2,015,709,863.28/65,041.88
  6. Step 6: Final answer
    x = 30,990.95

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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.