Home / 68,216.33-102,319.50-21,482.57

Finding the Fourth Proportional to 68,216.33, 102,319.50 and 21,482.57

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Solution

The fourth proportional to 68,216.33, 102,319.50 and 21,482.57 is: 32,222.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,216.33 : 102,319.50 = 21,482.57 : x
  2. Step 2: Convert to fraction form
    68,216.33/102,319.50 = 21,482.57/x
  3. Step 3: Cross multiply
    68,216.33x = 102,319.50 × 21,482.57
  4. Step 4: Simplify right side
    68,216.33x = 2,198,085,821.12
  5. Step 5: Solve for x
    x = 2,198,085,821.12/68,216.33
  6. Step 6: Final answer
    x = 32,222.28

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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.