Home / 66,531.78-91,821.60-37,861.83

Finding the Fourth Proportional to 66,531.78, 91,821.60 and 37,861.83

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Solution

The fourth proportional to 66,531.78, 91,821.60 and 37,861.83 is: 52,253.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,531.78 : 91,821.60 = 37,861.83 : x
  2. Step 2: Convert to fraction form
    66,531.78/91,821.60 = 37,861.83/x
  3. Step 3: Cross multiply
    66,531.78x = 91,821.60 × 37,861.83
  4. Step 4: Simplify right side
    66,531.78x = 3,476,533,809.53
  5. Step 5: Solve for x
    x = 3,476,533,809.53/66,531.78
  6. Step 6: Final answer
    x = 52,253.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.