Home / 75,945.60-113,908.41-19,789.79

Finding the Fourth Proportional to 75,945.60, 113,908.41 and 19,789.79

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Solution

The fourth proportional to 75,945.60, 113,908.41 and 19,789.79 is: 29,682.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,945.60 : 113,908.41 = 19,789.79 : x
  2. Step 2: Convert to fraction form
    75,945.60/113,908.41 = 19,789.79/x
  3. Step 3: Cross multiply
    75,945.60x = 113,908.41 × 19,789.79
  4. Step 4: Simplify right side
    75,945.60x = 2,254,222,943.59
  5. Step 5: Solve for x
    x = 2,254,222,943.59/75,945.60
  6. Step 6: Final answer
    x = 29,682.07

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1.5x scale

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.