Home / 71,976.71-107,965.06-38,650.93

Finding the Fourth Proportional to 71,976.71, 107,965.06 and 38,650.93

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Solution

The fourth proportional to 71,976.71, 107,965.06 and 38,650.93 is: 57,976.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,976.71 : 107,965.06 = 38,650.93 : x
  2. Step 2: Convert to fraction form
    71,976.71/107,965.06 = 38,650.93/x
  3. Step 3: Cross multiply
    71,976.71x = 107,965.06 × 38,650.93
  4. Step 4: Simplify right side
    71,976.71x = 4,172,949,976.51
  5. Step 5: Solve for x
    x = 4,172,949,976.51/71,976.71
  6. Step 6: Final answer
    x = 57,976.39

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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.