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Finding the Fourth Proportional to 65,943.98, 91,002.75 and 36,135.98

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Solution

The fourth proportional to 65,943.98, 91,002.75 and 36,135.98 is: 49,867.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,943.98 : 91,002.75 = 36,135.98 : x
  2. Step 2: Convert to fraction form
    65,943.98/91,002.75 = 36,135.98/x
  3. Step 3: Cross multiply
    65,943.98x = 91,002.75 × 36,135.98
  4. Step 4: Simplify right side
    65,943.98x = 3,288,473,553.95
  5. Step 5: Solve for x
    x = 3,288,473,553.95/65,943.98
  6. Step 6: Final answer
    x = 49,867.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.