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Finding the Fourth Proportional to 60,043.34, 90,066.83 and 20,599.88

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Solution

The fourth proportional to 60,043.34, 90,066.83 and 20,599.88 is: 30,900.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,043.34 : 90,066.83 = 20,599.88 : x
  2. Step 2: Convert to fraction form
    60,043.34/90,066.83 = 20,599.88/x
  3. Step 3: Cross multiply
    60,043.34x = 90,066.83 × 20,599.88
  4. Step 4: Simplify right side
    60,043.34x = 1,855,365,336.65
  5. Step 5: Solve for x
    x = 1,855,365,336.65/60,043.34
  6. Step 6: Final answer
    x = 30,900.43

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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.