Home / 68,855.14-103,283.84-21,471.50

Finding the Fourth Proportional to 68,855.14, 103,283.84 and 21,471.50

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Solution

The fourth proportional to 68,855.14, 103,283.84 and 21,471.50 is: 32,207.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,855.14 : 103,283.84 = 21,471.50 : x
  2. Step 2: Convert to fraction form
    68,855.14/103,283.84 = 21,471.50/x
  3. Step 3: Cross multiply
    68,855.14x = 103,283.84 × 21,471.50
  4. Step 4: Simplify right side
    68,855.14x = 2,217,658,970.56
  5. Step 5: Solve for x
    x = 2,217,658,970.56/68,855.14
  6. Step 6: Final answer
    x = 32,207.60

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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.