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Finding the Fourth Proportional to 100,028.63, 150,043.15 and 40,864.34

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Solution

The fourth proportional to 100,028.63, 150,043.15 and 40,864.34 is: 61,296.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,028.63 : 150,043.15 = 40,864.34 : x
  2. Step 2: Convert to fraction form
    100,028.63/150,043.15 = 40,864.34/x
  3. Step 3: Cross multiply
    100,028.63x = 150,043.15 × 40,864.34
  4. Step 4: Simplify right side
    100,028.63x = 6,131,414,296.27
  5. Step 5: Solve for x
    x = 6,131,414,296.27/100,028.63
  6. Step 6: Final answer
    x = 61,296.59

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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.