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Finding the Fourth Proportional to 40,429.80, 60,644.70 and 36,736.20

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Solution

The fourth proportional to 40,429.80, 60,644.70 and 36,736.20 is: 55,104.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,429.80 : 60,644.70 = 36,736.20 : x
  2. Step 2: Convert to fraction form
    40,429.80/60,644.70 = 36,736.20/x
  3. Step 3: Cross multiply
    40,429.80x = 60,644.70 × 36,736.20
  4. Step 4: Simplify right side
    40,429.80x = 2,227,855,828.14
  5. Step 5: Solve for x
    x = 2,227,855,828.14/40,429.80
  6. Step 6: Final answer
    x = 55,104.30

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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.