Home / 66,934.14-100,351.99-31,898.40

Finding the Fourth Proportional to 66,934.14, 100,351.99 and 31,898.40

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Solution

The fourth proportional to 66,934.14, 100,351.99 and 31,898.40 is: 47,824.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,934.14 : 100,351.99 = 31,898.40 : x
  2. Step 2: Convert to fraction form
    66,934.14/100,351.99 = 31,898.40/x
  3. Step 3: Cross multiply
    66,934.14x = 100,351.99 × 31,898.40
  4. Step 4: Simplify right side
    66,934.14x = 3,201,067,917.82
  5. Step 5: Solve for x
    x = 3,201,067,917.82/66,934.14
  6. Step 6: Final answer
    x = 47,824.14

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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.