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Finding the Fourth Proportional to 68,343.96, 102,515.30 and 21,596.84

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Solution

The fourth proportional to 68,343.96, 102,515.30 and 21,596.84 is: 32,395.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,343.96 : 102,515.30 = 21,596.84 : x
  2. Step 2: Convert to fraction form
    68,343.96/102,515.30 = 21,596.84/x
  3. Step 3: Cross multiply
    68,343.96x = 102,515.30 × 21,596.84
  4. Step 4: Simplify right side
    68,343.96x = 2,214,006,531.65
  5. Step 5: Solve for x
    x = 2,214,006,531.65/68,343.96
  6. Step 6: Final answer
    x = 32,395.06

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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.