Home / 66,036.20-91,107.79-37,721.84

Finding the Fourth Proportional to 66,036.20, 91,107.79 and 37,721.84

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Solution

The fourth proportional to 66,036.20, 91,107.79 and 37,721.84 is: 52,043.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,036.20 : 91,107.79 = 37,721.84 : x
  2. Step 2: Convert to fraction form
    66,036.20/91,107.79 = 37,721.84/x
  3. Step 3: Cross multiply
    66,036.20x = 91,107.79 × 37,721.84
  4. Step 4: Simplify right side
    66,036.20x = 3,436,752,927.29
  5. Step 5: Solve for x
    x = 3,436,752,927.29/66,036.20
  6. Step 6: Final answer
    x = 52,043.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.