Home / 79,965.63-119,947.91-26,661.69

Finding the Fourth Proportional to 79,965.63, 119,947.91 and 26,661.69

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Solution

The fourth proportional to 79,965.63, 119,947.91 and 26,661.69 is: 39,992.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,965.63 : 119,947.91 = 26,661.69 : x
  2. Step 2: Convert to fraction form
    79,965.63/119,947.91 = 26,661.69/x
  3. Step 3: Cross multiply
    79,965.63x = 119,947.91 × 26,661.69
  4. Step 4: Simplify right side
    79,965.63x = 3,198,013,859.26
  5. Step 5: Solve for x
    x = 3,198,013,859.26/79,965.63
  6. Step 6: Final answer
    x = 39,992.35

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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.