Home / 51,981.14-77,977.82-18,236.86

Finding the Fourth Proportional to 51,981.14, 77,977.82 and 18,236.86

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Solution

The fourth proportional to 51,981.14, 77,977.82 and 18,236.86 is: 27,357.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,981.14 : 77,977.82 = 18,236.86 : x
  2. Step 2: Convert to fraction form
    51,981.14/77,977.82 = 18,236.86/x
  3. Step 3: Cross multiply
    51,981.14x = 77,977.82 × 18,236.86
  4. Step 4: Simplify right side
    51,981.14x = 1,422,070,586.45
  5. Step 5: Solve for x
    x = 1,422,070,586.45/51,981.14
  6. Step 6: Final answer
    x = 27,357.43

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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.