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Finding the Fourth Proportional to 65,329.62, 90,153.78 and 36,650.36

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Solution

The fourth proportional to 65,329.62, 90,153.78 and 36,650.36 is: 50,576.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,329.62 : 90,153.78 = 36,650.36 : x
  2. Step 2: Convert to fraction form
    65,329.62/90,153.78 = 36,650.36/x
  3. Step 3: Cross multiply
    65,329.62x = 90,153.78 × 36,650.36
  4. Step 4: Simplify right side
    65,329.62x = 3,304,168,530.84
  5. Step 5: Solve for x
    x = 3,304,168,530.84/65,329.62
  6. Step 6: Final answer
    x = 50,576.88

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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.