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Finding the Fourth Proportional to 68,297.17, 102,445.75 and 21,553.69

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Solution

The fourth proportional to 68,297.17, 102,445.75 and 21,553.69 is: 32,330.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,297.17 : 102,445.75 = 21,553.69 : x
  2. Step 2: Convert to fraction form
    68,297.17/102,445.75 = 21,553.69/x
  3. Step 3: Cross multiply
    68,297.17x = 102,445.75 × 21,553.69
  4. Step 4: Simplify right side
    68,297.17x = 2,208,083,708.15
  5. Step 5: Solve for x
    x = 2,208,083,708.15/68,297.17
  6. Step 6: Final answer
    x = 32,330.53

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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.