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Finding the Fourth Proportional to 65,964.48, 91,029.64 and 36,892.78

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Solution

The fourth proportional to 65,964.48, 91,029.64 and 36,892.78 is: 50,911.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,964.48 : 91,029.64 = 36,892.78 : x
  2. Step 2: Convert to fraction form
    65,964.48/91,029.64 = 36,892.78/x
  3. Step 3: Cross multiply
    65,964.48x = 91,029.64 × 36,892.78
  4. Step 4: Simplify right side
    65,964.48x = 3,358,336,482.00
  5. Step 5: Solve for x
    x = 3,358,336,482.00/65,964.48
  6. Step 6: Final answer
    x = 50,911.29

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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.