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Finding the Fourth Proportional to 79,449.96, 119,174.94 and 20,283.51

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Solution

The fourth proportional to 79,449.96, 119,174.94 and 20,283.51 is: 30,425.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,449.96 : 119,174.94 = 20,283.51 : x
  2. Step 2: Convert to fraction form
    79,449.96/119,174.94 = 20,283.51/x
  3. Step 3: Cross multiply
    79,449.96x = 119,174.94 × 20,283.51
  4. Step 4: Simplify right side
    79,449.96x = 2,417,285,389.95
  5. Step 5: Solve for x
    x = 2,417,285,389.95/79,449.96
  6. Step 6: Final answer
    x = 30,425.26

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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.