Home / 85,265.22-127,788.37-40,825.38

Finding the Fourth Proportional to 85,265.22, 127,788.37 and 40,825.38

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Solution

The fourth proportional to 85,265.22, 127,788.37 and 40,825.38 is: 61,185.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,265.22 : 127,788.37 = 40,825.38 : x
  2. Step 2: Convert to fraction form
    85,265.22/127,788.37 = 40,825.38/x
  3. Step 3: Cross multiply
    85,265.22x = 127,788.37 × 40,825.38
  4. Step 4: Simplify right side
    85,265.22x = 5,217,008,764.83
  5. Step 5: Solve for x
    x = 5,217,008,764.83/85,265.22
  6. Step 6: Final answer
    x = 61,185.66

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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.