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Finding the Fourth Proportional to 71,150, 98,072.88 and 48,172.52

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Solution

The fourth proportional to 71,150, 98,072.88 and 48,172.52 is: 66,400.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,150 : 98,072.88 = 48,172.52 : x
  2. Step 2: Convert to fraction form
    71,150/98,072.88 = 48,172.52/x
  3. Step 3: Cross multiply
    71,150x = 98,072.88 × 48,172.52
  4. Step 4: Simplify right side
    71,150x = 4,724,417,773.26
  5. Step 5: Solve for x
    x = 4,724,417,773.26/71,150
  6. Step 6: Final answer
    x = 66,400.81

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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.