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Finding the Fourth Proportional to 65,550.10, 90,461.84 and 36,871.09

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Solution

The fourth proportional to 65,550.10, 90,461.84 and 36,871.09 is: 50,883.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,550.10 : 90,461.84 = 36,871.09 : x
  2. Step 2: Convert to fraction form
    65,550.10/90,461.84 = 36,871.09/x
  3. Step 3: Cross multiply
    65,550.10x = 90,461.84 × 36,871.09
  4. Step 4: Simplify right side
    65,550.10x = 3,335,426,742.54
  5. Step 5: Solve for x
    x = 3,335,426,742.54/65,550.10
  6. Step 6: Final answer
    x = 50,883.63

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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.