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Finding the Fourth Proportional to 65,265.92, 97,850.99 and 20,867.12

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Solution

The fourth proportional to 65,265.92, 97,850.99 and 20,867.12 is: 31,285.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,265.92 : 97,850.99 = 20,867.12 : x
  2. Step 2: Convert to fraction form
    65,265.92/97,850.99 = 20,867.12/x
  3. Step 3: Cross multiply
    65,265.92x = 97,850.99 × 20,867.12
  4. Step 4: Simplify right side
    65,265.92x = 2,041,867,756.86
  5. Step 5: Solve for x
    x = 2,041,867,756.86/65,265.92
  6. Step 6: Final answer
    x = 31,285.36

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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.