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Finding the Fourth Proportional to 63,558.64, 87,708 and 34,877.60

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Solution

The fourth proportional to 63,558.64, 87,708 and 34,877.60 is: 48,129.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,558.64 : 87,708 = 34,877.60 : x
  2. Step 2: Convert to fraction form
    63,558.64/87,708 = 34,877.60/x
  3. Step 3: Cross multiply
    63,558.64x = 87,708 × 34,877.60
  4. Step 4: Simplify right side
    63,558.64x = 3,059,044,540.80
  5. Step 5: Solve for x
    x = 3,059,044,540.80/63,558.64
  6. Step 6: Final answer
    x = 48,129.48

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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.