Home / 81,408.20-122,258.10-59,246.60

Finding the Fourth Proportional to 81,408.20, 122,258.10 and 59,246.60

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Solution

The fourth proportional to 81,408.20, 122,258.10 and 59,246.60 is: 88,976.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,408.20 : 122,258.10 = 59,246.60 : x
  2. Step 2: Convert to fraction form
    81,408.20/122,258.10 = 59,246.60/x
  3. Step 3: Cross multiply
    81,408.20x = 122,258.10 × 59,246.60
  4. Step 4: Simplify right side
    81,408.20x = 7,243,376,747.46
  5. Step 5: Solve for x
    x = 7,243,376,747.46/81,408.20
  6. Step 6: Final answer
    x = 88,976.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.