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Finding the Fourth Proportional to 63,567.26, 87,739.83 and 39,679.55

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Solution

The fourth proportional to 63,567.26, 87,739.83 and 39,679.55 is: 54,768.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,567.26 : 87,739.83 = 39,679.55 : x
  2. Step 2: Convert to fraction form
    63,567.26/87,739.83 = 39,679.55/x
  3. Step 3: Cross multiply
    63,567.26x = 87,739.83 × 39,679.55
  4. Step 4: Simplify right side
    63,567.26x = 3,481,476,532.78
  5. Step 5: Solve for x
    x = 3,481,476,532.78/63,567.26
  6. Step 6: Final answer
    x = 54,768.40

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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.