Home / 77,150.16-115,791.04-30,435.84

Finding the Fourth Proportional to 77,150.16, 115,791.04 and 30,435.84

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Solution

The fourth proportional to 77,150.16, 115,791.04 and 30,435.84 is: 45,679.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,150.16 : 115,791.04 = 30,435.84 : x
  2. Step 2: Convert to fraction form
    77,150.16/115,791.04 = 30,435.84/x
  3. Step 3: Cross multiply
    77,150.16x = 115,791.04 × 30,435.84
  4. Step 4: Simplify right side
    77,150.16x = 3,524,197,566.87
  5. Step 5: Solve for x
    x = 3,524,197,566.87/77,150.16
  6. Step 6: Final answer
    x = 45,679.72

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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.