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Finding the Fourth Proportional to 63,133.61, 87,128.66 and 36,286.83

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Solution

The fourth proportional to 63,133.61, 87,128.66 and 36,286.83 is: 50,078.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,133.61 : 87,128.66 = 36,286.83 : x
  2. Step 2: Convert to fraction form
    63,133.61/87,128.66 = 36,286.83/x
  3. Step 3: Cross multiply
    63,133.61x = 87,128.66 × 36,286.83
  4. Step 4: Simplify right side
    63,133.61x = 3,161,622,692.11
  5. Step 5: Solve for x
    x = 3,161,622,692.11/63,133.61
  6. Step 6: Final answer
    x = 50,078.29

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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.