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Finding the Fourth Proportional to 65,251.52, 97,891.86 and 20,880.94

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Solution

The fourth proportional to 65,251.52, 97,891.86 and 20,880.94 is: 31,326.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,251.52 : 97,891.86 = 20,880.94 : x
  2. Step 2: Convert to fraction form
    65,251.52/97,891.86 = 20,880.94/x
  3. Step 3: Cross multiply
    65,251.52x = 97,891.86 × 20,880.94
  4. Step 4: Simplify right side
    65,251.52x = 2,044,073,565.69
  5. Step 5: Solve for x
    x = 2,044,073,565.69/65,251.52
  6. Step 6: Final answer
    x = 31,326.07

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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.