Home / 88,630.78-122,355.62-68,442.34

Finding the Fourth Proportional to 88,630.78, 122,355.62 and 68,442.34

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Solution

The fourth proportional to 88,630.78, 122,355.62 and 68,442.34 is: 94,485.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,630.78 : 122,355.62 = 68,442.34 : x
  2. Step 2: Convert to fraction form
    88,630.78/122,355.62 = 68,442.34/x
  3. Step 3: Cross multiply
    88,630.78x = 122,355.62 × 68,442.34
  4. Step 4: Simplify right side
    88,630.78x = 8,374,304,944.95
  5. Step 5: Solve for x
    x = 8,374,304,944.95/88,630.78
  6. Step 6: Final answer
    x = 94,485.29

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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.