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Finding the Fourth Proportional to 63,549.68, 87,662.12 and 39,634.83

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Solution

The fourth proportional to 63,549.68, 87,662.12 and 39,634.83 is: 54,673.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,549.68 : 87,662.12 = 39,634.83 : x
  2. Step 2: Convert to fraction form
    63,549.68/87,662.12 = 39,634.83/x
  3. Step 3: Cross multiply
    63,549.68x = 87,662.12 × 39,634.83
  4. Step 4: Simplify right side
    63,549.68x = 3,474,473,025.47
  5. Step 5: Solve for x
    x = 3,474,473,025.47/63,549.68
  6. Step 6: Final answer
    x = 54,673.34

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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.