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Finding the Fourth Proportional to 66,634.89, 99,902.89 and 40,333.65

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Solution

The fourth proportional to 66,634.89, 99,902.89 and 40,333.65 is: 60,470.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,634.89 : 99,902.89 = 40,333.65 : x
  2. Step 2: Convert to fraction form
    66,634.89/99,902.89 = 40,333.65/x
  3. Step 3: Cross multiply
    66,634.89x = 99,902.89 × 40,333.65
  4. Step 4: Simplify right side
    66,634.89x = 4,029,448,199.25
  5. Step 5: Solve for x
    x = 4,029,448,199.25/66,634.89
  6. Step 6: Final answer
    x = 60,470.55

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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.