Home / 43,279.20-64,922.58-12,114.54

Finding the Fourth Proportional to 43,279.20, 64,922.58 and 12,114.54

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Solution

The fourth proportional to 43,279.20, 64,922.58 and 12,114.54 is: 18,172.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,279.20 : 64,922.58 = 12,114.54 : x
  2. Step 2: Convert to fraction form
    43,279.20/64,922.58 = 12,114.54/x
  3. Step 3: Cross multiply
    43,279.20x = 64,922.58 × 12,114.54
  4. Step 4: Simplify right side
    43,279.20x = 786,507,192.31
  5. Step 5: Solve for x
    x = 786,507,192.31/43,279.20
  6. Step 6: Final answer
    x = 18,172.87

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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.