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Finding the Fourth Proportional to 68,706.65, 102,884.99 and 45,262.01

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Solution

The fourth proportional to 68,706.65, 102,884.99 and 45,262.01 is: 67,777.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,706.65 : 102,884.99 = 45,262.01 : x
  2. Step 2: Convert to fraction form
    68,706.65/102,884.99 = 45,262.01/x
  3. Step 3: Cross multiply
    68,706.65x = 102,884.99 × 45,262.01
  4. Step 4: Simplify right side
    68,706.65x = 4,656,780,705.49
  5. Step 5: Solve for x
    x = 4,656,780,705.49/68,706.65
  6. Step 6: Final answer
    x = 67,777.73

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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.