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Finding the Fourth Proportional to 79,084.83, 119,177.40 and 71,590.67

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Solution

The fourth proportional to 79,084.83, 119,177.40 and 71,590.67 is: 107,884.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,084.83 : 119,177.40 = 71,590.67 : x
  2. Step 2: Convert to fraction form
    79,084.83/119,177.40 = 71,590.67/x
  3. Step 3: Cross multiply
    79,084.83x = 119,177.40 × 71,590.67
  4. Step 4: Simplify right side
    79,084.83x = 8,531,989,318.97
  5. Step 5: Solve for x
    x = 8,531,989,318.97/79,084.83
  6. Step 6: Final answer
    x = 107,884.02

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.