Home / 77,414.42-115,478.84-74,822.96

Finding the Fourth Proportional to 77,414.42, 115,478.84 and 74,822.96

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Solution

The fourth proportional to 77,414.42, 115,478.84 and 74,822.96 is: 111,613.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,414.42 : 115,478.84 = 74,822.96 : x
  2. Step 2: Convert to fraction form
    77,414.42/115,478.84 = 74,822.96/x
  3. Step 3: Cross multiply
    77,414.42x = 115,478.84 × 74,822.96
  4. Step 4: Simplify right side
    77,414.42x = 8,640,468,626.17
  5. Step 5: Solve for x
    x = 8,640,468,626.17/77,414.42
  6. Step 6: Final answer
    x = 111,613.17

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.