Home / 71,921.64-107,844.48-38,206.56

Finding the Fourth Proportional to 71,921.64, 107,844.48 and 38,206.56

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Solution

The fourth proportional to 71,921.64, 107,844.48 and 38,206.56 is: 57,289.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,921.64 : 107,844.48 = 38,206.56 : x
  2. Step 2: Convert to fraction form
    71,921.64/107,844.48 = 38,206.56/x
  3. Step 3: Cross multiply
    71,921.64x = 107,844.48 × 38,206.56
  4. Step 4: Simplify right side
    71,921.64x = 4,120,366,595.79
  5. Step 5: Solve for x
    x = 4,120,366,595.79/71,921.64
  6. Step 6: Final answer
    x = 57,289.66

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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.