Home / 81,539.52-122,346.72-48,325.44

Finding the Fourth Proportional to 81,539.52, 122,346.72 and 48,325.44

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Solution

The fourth proportional to 81,539.52, 122,346.72 and 48,325.44 is: 72,510.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,539.52 : 122,346.72 = 48,325.44 : x
  2. Step 2: Convert to fraction form
    81,539.52/122,346.72 = 48,325.44/x
  3. Step 3: Cross multiply
    81,539.52x = 122,346.72 × 48,325.44
  4. Step 4: Simplify right side
    81,539.52x = 5,912,459,076.56
  5. Step 5: Solve for x
    x = 5,912,459,076.56/81,539.52
  6. Step 6: Final answer
    x = 72,510.35

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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.