Home / 66,164.07-99,251.57-21,191.99

Finding the Fourth Proportional to 66,164.07, 99,251.57 and 21,191.99

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Solution

The fourth proportional to 66,164.07, 99,251.57 and 21,191.99 is: 31,789.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,164.07 : 99,251.57 = 21,191.99 : x
  2. Step 2: Convert to fraction form
    66,164.07/99,251.57 = 21,191.99/x
  3. Step 3: Cross multiply
    66,164.07x = 99,251.57 × 21,191.99
  4. Step 4: Simplify right side
    66,164.07x = 2,103,338,278.92
  5. Step 5: Solve for x
    x = 2,103,338,278.92/66,164.07
  6. Step 6: Final answer
    x = 31,789.74

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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.