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Finding the Fourth Proportional to 79,436.70, 119,046.92 and 40,020.89

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Solution

The fourth proportional to 79,436.70, 119,046.92 and 40,020.89 is: 59,976.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,436.70 : 119,046.92 = 40,020.89 : x
  2. Step 2: Convert to fraction form
    79,436.70/119,046.92 = 40,020.89/x
  3. Step 3: Cross multiply
    79,436.70x = 119,046.92 × 40,020.89
  4. Step 4: Simplify right side
    79,436.70x = 4,764,362,894.82
  5. Step 5: Solve for x
    x = 4,764,362,894.82/79,436.70
  6. Step 6: Final answer
    x = 59,976.85

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1.5x scale

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.