Home / 66,176.76-91,371.63-40,717.38

Finding the Fourth Proportional to 66,176.76, 91,371.63 and 40,717.38

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Solution

The fourth proportional to 66,176.76, 91,371.63 and 40,717.38 is: 56,219.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,176.76 : 91,371.63 = 40,717.38 : x
  2. Step 2: Convert to fraction form
    66,176.76/91,371.63 = 40,717.38/x
  3. Step 3: Cross multiply
    66,176.76x = 91,371.63 × 40,717.38
  4. Step 4: Simplify right side
    66,176.76x = 3,720,413,379.93
  5. Step 5: Solve for x
    x = 3,720,413,379.93/66,176.76
  6. Step 6: Final answer
    x = 56,219.33

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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.