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Finding the Fourth Proportional to 68,271.16, 102,406.74 and 21,527.68

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Solution

The fourth proportional to 68,271.16, 102,406.74 and 21,527.68 is: 32,291.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,271.16 : 102,406.74 = 21,527.68 : x
  2. Step 2: Convert to fraction form
    68,271.16/102,406.74 = 21,527.68/x
  3. Step 3: Cross multiply
    68,271.16x = 102,406.74 × 21,527.68
  4. Step 4: Simplify right side
    68,271.16x = 2,204,579,528.56
  5. Step 5: Solve for x
    x = 2,204,579,528.56/68,271.16
  6. Step 6: Final answer
    x = 32,291.52

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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.