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Finding the Fourth Proportional to 68,601.40, 102,902.11 and 45,222.37

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Solution

The fourth proportional to 68,601.40, 102,902.11 and 45,222.37 is: 67,833.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,601.40 : 102,902.11 = 45,222.37 : x
  2. Step 2: Convert to fraction form
    68,601.40/102,902.11 = 45,222.37/x
  3. Step 3: Cross multiply
    68,601.40x = 102,902.11 × 45,222.37
  4. Step 4: Simplify right side
    68,601.40x = 4,653,477,500.71
  5. Step 5: Solve for x
    x = 4,653,477,500.71/68,601.40
  6. Step 6: Final answer
    x = 67,833.56

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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.