Home / 78,766.64-118,124.48-26,162

Finding the Fourth Proportional to 78,766.64, 118,124.48 and 26,162

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Solution

The fourth proportional to 78,766.64, 118,124.48 and 26,162 is: 39,234.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,766.64 : 118,124.48 = 26,162 : x
  2. Step 2: Convert to fraction form
    78,766.64/118,124.48 = 26,162/x
  3. Step 3: Cross multiply
    78,766.64x = 118,124.48 × 26,162
  4. Step 4: Simplify right side
    78,766.64x = 3,090,372,645.76
  5. Step 5: Solve for x
    x = 3,090,372,645.76/78,766.64
  6. Step 6: Final answer
    x = 39,234.54

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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.