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Finding the Fourth Proportional to 79,562.57, 119,334.94 and 20,399.63

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Solution

The fourth proportional to 79,562.57, 119,334.94 and 20,399.63 is: 30,597.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,562.57 : 119,334.94 = 20,399.63 : x
  2. Step 2: Convert to fraction form
    79,562.57/119,334.94 = 20,399.63/x
  3. Step 3: Cross multiply
    79,562.57x = 119,334.94 × 20,399.63
  4. Step 4: Simplify right side
    79,562.57x = 2,434,388,622.07
  5. Step 5: Solve for x
    x = 2,434,388,622.07/79,562.57
  6. Step 6: Final answer
    x = 30,597.16

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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.