Home / 74,350.45-111,528.78-21,759.94

Finding the Fourth Proportional to 74,350.45, 111,528.78 and 21,759.94

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Solution

The fourth proportional to 74,350.45, 111,528.78 and 21,759.94 is: 32,640.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,350.45 : 111,528.78 = 21,759.94 : x
  2. Step 2: Convert to fraction form
    74,350.45/111,528.78 = 21,759.94/x
  3. Step 3: Cross multiply
    74,350.45x = 111,528.78 × 21,759.94
  4. Step 4: Simplify right side
    74,350.45x = 2,426,859,561.07
  5. Step 5: Solve for x
    x = 2,426,859,561.07/74,350.45
  6. Step 6: Final answer
    x = 32,640.82

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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.