Home / 64,039.82-96,074.71-21,920.36

Finding the Fourth Proportional to 64,039.82, 96,074.71 and 21,920.36

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Solution

The fourth proportional to 64,039.82, 96,074.71 and 21,920.36 is: 32,885.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,039.82 : 96,074.71 = 21,920.36 : x
  2. Step 2: Convert to fraction form
    64,039.82/96,074.71 = 21,920.36/x
  3. Step 3: Cross multiply
    64,039.82x = 96,074.71 × 21,920.36
  4. Step 4: Simplify right side
    64,039.82x = 2,105,991,694.92
  5. Step 5: Solve for x
    x = 2,105,991,694.92/64,039.82
  6. Step 6: Final answer
    x = 32,885.66

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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.