Home / 90,729.64-125,163.28-58,908.52

Finding the Fourth Proportional to 90,729.64, 125,163.28 and 58,908.52

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Solution

The fourth proportional to 90,729.64, 125,163.28 and 58,908.52 is: 81,265.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,729.64 : 125,163.28 = 58,908.52 : x
  2. Step 2: Convert to fraction form
    90,729.64/125,163.28 = 58,908.52/x
  3. Step 3: Cross multiply
    90,729.64x = 125,163.28 × 58,908.52
  4. Step 4: Simplify right side
    90,729.64x = 7,373,183,583.15
  5. Step 5: Solve for x
    x = 7,373,183,583.15/90,729.64
  6. Step 6: Final answer
    x = 81,265.43

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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.