Home / 71,698.74-98,943.63-39,867.36

Finding the Fourth Proportional to 71,698.74, 98,943.63 and 39,867.36

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Solution

The fourth proportional to 71,698.74, 98,943.63 and 39,867.36 is: 55,016.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,698.74 : 98,943.63 = 39,867.36 : x
  2. Step 2: Convert to fraction form
    71,698.74/98,943.63 = 39,867.36/x
  3. Step 3: Cross multiply
    71,698.74x = 98,943.63 × 39,867.36
  4. Step 4: Simplify right side
    71,698.74x = 3,944,621,316.92
  5. Step 5: Solve for x
    x = 3,944,621,316.92/71,698.74
  6. Step 6: Final answer
    x = 55,016.61

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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.