Home / 78,788.18-118,183.30-26,197.67

Finding the Fourth Proportional to 78,788.18, 118,183.30 and 26,197.67

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Solution

The fourth proportional to 78,788.18, 118,183.30 and 26,197.67 is: 39,296.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,788.18 : 118,183.30 = 26,197.67 : x
  2. Step 2: Convert to fraction form
    78,788.18/118,183.30 = 26,197.67/x
  3. Step 3: Cross multiply
    78,788.18x = 118,183.30 × 26,197.67
  4. Step 4: Simplify right side
    78,788.18x = 3,096,126,436.50
  5. Step 5: Solve for x
    x = 3,096,126,436.50/78,788.18
  6. Step 6: Final answer
    x = 39,296.84

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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.