Home / 51,889.78-77,834.70-18,611.92

Finding the Fourth Proportional to 51,889.78, 77,834.70 and 18,611.92

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Solution

The fourth proportional to 51,889.78, 77,834.70 and 18,611.92 is: 27,917.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,889.78 : 77,834.70 = 18,611.92 : x
  2. Step 2: Convert to fraction form
    51,889.78/77,834.70 = 18,611.92/x
  3. Step 3: Cross multiply
    51,889.78x = 77,834.70 × 18,611.92
  4. Step 4: Simplify right side
    51,889.78x = 1,448,653,209.62
  5. Step 5: Solve for x
    x = 1,448,653,209.62/51,889.78
  6. Step 6: Final answer
    x = 27,917.89

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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.