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Finding the Fourth Proportional to 63,909, 88,160.87 and 48,775.30

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Solution

The fourth proportional to 63,909, 88,160.87 and 48,775.30 is: 67,284.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,909 : 88,160.87 = 48,775.30 : x
  2. Step 2: Convert to fraction form
    63,909/88,160.87 = 48,775.30/x
  3. Step 3: Cross multiply
    63,909x = 88,160.87 × 48,775.30
  4. Step 4: Simplify right side
    63,909x = 4,300,072,784.05
  5. Step 5: Solve for x
    x = 4,300,072,784.05/63,909
  6. Step 6: Final answer
    x = 67,284.31

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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.