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Finding the Fourth Proportional to 63,419, 87,517.15 and 35,124.08

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Solution

The fourth proportional to 63,419, 87,517.15 and 35,124.08 is: 48,470.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,419 : 87,517.15 = 35,124.08 : x
  2. Step 2: Convert to fraction form
    63,419/87,517.15 = 35,124.08/x
  3. Step 3: Cross multiply
    63,419x = 87,517.15 × 35,124.08
  4. Step 4: Simplify right side
    63,419x = 3,073,959,290.16
  5. Step 5: Solve for x
    x = 3,073,959,290.16/63,419
  6. Step 6: Final answer
    x = 48,470.64

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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.