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Finding the Fourth Proportional to 79,666.71, 119,573.91 and 40,251.57

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Solution

The fourth proportional to 79,666.71, 119,573.91 and 40,251.57 is: 60,414.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,666.71 : 119,573.91 = 40,251.57 : x
  2. Step 2: Convert to fraction form
    79,666.71/119,573.91 = 40,251.57/x
  3. Step 3: Cross multiply
    79,666.71x = 119,573.91 × 40,251.57
  4. Step 4: Simplify right side
    79,666.71x = 4,813,037,608.54
  5. Step 5: Solve for x
    x = 4,813,037,608.54/79,666.71
  6. Step 6: Final answer
    x = 60,414.67

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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.