Home / 77,677.25-116,265.24-40,185.72

Finding the Fourth Proportional to 77,677.25, 116,265.24 and 40,185.72

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Solution

The fourth proportional to 77,677.25, 116,265.24 and 40,185.72 is: 60,148.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,677.25 : 116,265.24 = 40,185.72 : x
  2. Step 2: Convert to fraction form
    77,677.25/116,265.24 = 40,185.72/x
  3. Step 3: Cross multiply
    77,677.25x = 116,265.24 × 40,185.72
  4. Step 4: Simplify right side
    77,677.25x = 4,672,202,380.37
  5. Step 5: Solve for x
    x = 4,672,202,380.37/77,677.25
  6. Step 6: Final answer
    x = 60,148.92

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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.