Home / 66,568.10-91,841.45-40,717.15

Finding the Fourth Proportional to 66,568.10, 91,841.45 and 40,717.15

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Solution

The fourth proportional to 66,568.10, 91,841.45 and 40,717.15 is: 56,175.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,568.10 : 91,841.45 = 40,717.15 : x
  2. Step 2: Convert to fraction form
    66,568.10/91,841.45 = 40,717.15/x
  3. Step 3: Cross multiply
    66,568.10x = 91,841.45 × 40,717.15
  4. Step 4: Simplify right side
    66,568.10x = 3,739,521,662.68
  5. Step 5: Solve for x
    x = 3,739,521,662.68/66,568.10
  6. Step 6: Final answer
    x = 56,175.89

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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.