Home / 81,851.68-122,819.46-48,166.66

Finding the Fourth Proportional to 81,851.68, 122,819.46 and 48,166.66

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Solution

The fourth proportional to 81,851.68, 122,819.46 and 48,166.66 is: 72,274.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,851.68 : 122,819.46 = 48,166.66 : x
  2. Step 2: Convert to fraction form
    81,851.68/122,819.46 = 48,166.66/x
  3. Step 3: Cross multiply
    81,851.68x = 122,819.46 × 48,166.66
  4. Step 4: Simplify right side
    81,851.68x = 5,915,803,171.20
  5. Step 5: Solve for x
    x = 5,915,803,171.20/81,851.68
  6. Step 6: Final answer
    x = 72,274.67

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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.