Home / 76,983.68-106,178.64-53,150.24

Finding the Fourth Proportional to 76,983.68, 106,178.64 and 53,150.24

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Solution

The fourth proportional to 76,983.68, 106,178.64 and 53,150.24 is: 73,306.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,983.68 : 106,178.64 = 53,150.24 : x
  2. Step 2: Convert to fraction form
    76,983.68/106,178.64 = 53,150.24/x
  3. Step 3: Cross multiply
    76,983.68x = 106,178.64 × 53,150.24
  4. Step 4: Simplify right side
    76,983.68x = 5,643,420,198.87
  5. Step 5: Solve for x
    x = 5,643,420,198.87/76,983.68
  6. Step 6: Final answer
    x = 73,306.71

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1.5x scale

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.