Home / 70,816.71-97,723.29-38,979.48

Finding the Fourth Proportional to 70,816.71, 97,723.29 and 38,979.48

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Solution

The fourth proportional to 70,816.71, 97,723.29 and 38,979.48 is: 53,789.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,816.71 : 97,723.29 = 38,979.48 : x
  2. Step 2: Convert to fraction form
    70,816.71/97,723.29 = 38,979.48/x
  3. Step 3: Cross multiply
    70,816.71x = 97,723.29 × 38,979.48
  4. Step 4: Simplify right side
    70,816.71x = 3,809,203,028.09
  5. Step 5: Solve for x
    x = 3,809,203,028.09/70,816.71
  6. Step 6: Final answer
    x = 53,789.61

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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.