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Finding the Fourth Proportional to 68,315.63, 102,473.44 and 21,568.50

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Solution

The fourth proportional to 68,315.63, 102,473.44 and 21,568.50 is: 32,352.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,315.63 : 102,473.44 = 21,568.50 : x
  2. Step 2: Convert to fraction form
    68,315.63/102,473.44 = 21,568.50/x
  3. Step 3: Cross multiply
    68,315.63x = 102,473.44 × 21,568.50
  4. Step 4: Simplify right side
    68,315.63x = 2,210,198,336.72
  5. Step 5: Solve for x
    x = 2,210,198,336.72/68,315.63
  6. Step 6: Final answer
    x = 32,352.75

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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.