Home / 74,584.45-111,859.58-21,275.42

Finding the Fourth Proportional to 74,584.45, 111,859.58 and 21,275.42

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Solution

The fourth proportional to 74,584.45, 111,859.58 and 21,275.42 is: 31,908.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,584.45 : 111,859.58 = 21,275.42 : x
  2. Step 2: Convert to fraction form
    74,584.45/111,859.58 = 21,275.42/x
  3. Step 3: Cross multiply
    74,584.45x = 111,859.58 × 21,275.42
  4. Step 4: Simplify right side
    74,584.45x = 2,379,858,986.23
  5. Step 5: Solve for x
    x = 2,379,858,986.23/74,584.45
  6. Step 6: Final answer
    x = 31,908.25

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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.