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Finding the Fourth Proportional to 63,172.84, 87,179.88 and 34,880.32

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Solution

The fourth proportional to 63,172.84, 87,179.88 and 34,880.32 is: 48,135.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,172.84 : 87,179.88 = 34,880.32 : x
  2. Step 2: Convert to fraction form
    63,172.84/87,179.88 = 34,880.32/x
  3. Step 3: Cross multiply
    63,172.84x = 87,179.88 × 34,880.32
  4. Step 4: Simplify right side
    63,172.84x = 3,040,862,111.96
  5. Step 5: Solve for x
    x = 3,040,862,111.96/63,172.84
  6. Step 6: Final answer
    x = 48,135.59

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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.