Home / 68,179.50-102,285.72-21,432.24

Finding the Fourth Proportional to 68,179.50, 102,285.72 and 21,432.24

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Solution

The fourth proportional to 68,179.50, 102,285.72 and 21,432.24 is: 32,153.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,179.50 : 102,285.72 = 21,432.24 : x
  2. Step 2: Convert to fraction form
    68,179.50/102,285.72 = 21,432.24/x
  3. Step 3: Cross multiply
    68,179.50x = 102,285.72 × 21,432.24
  4. Step 4: Simplify right side
    68,179.50x = 2,192,212,099.61
  5. Step 5: Solve for x
    x = 2,192,212,099.61/68,179.50
  6. Step 6: Final answer
    x = 32,153.54

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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.