Home / 79,932.88-119,885.64-26,618.80

Finding the Fourth Proportional to 79,932.88, 119,885.64 and 26,618.80

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Solution

The fourth proportional to 79,932.88, 119,885.64 and 26,618.80 is: 39,923.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,932.88 : 119,885.64 = 26,618.80 : x
  2. Step 2: Convert to fraction form
    79,932.88/119,885.64 = 26,618.80/x
  3. Step 3: Cross multiply
    79,932.88x = 119,885.64 × 26,618.80
  4. Step 4: Simplify right side
    79,932.88x = 3,191,211,874.03
  5. Step 5: Solve for x
    x = 3,191,211,874.03/79,932.88
  6. Step 6: Final answer
    x = 39,923.64

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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.