Home / 49,905.13-74,817.96-28,821.19

Finding the Fourth Proportional to 49,905.13, 74,817.96 and 28,821.19

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Solution

The fourth proportional to 49,905.13, 74,817.96 and 28,821.19 is: 43,208.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,905.13 : 74,817.96 = 28,821.19 : x
  2. Step 2: Convert to fraction form
    49,905.13/74,817.96 = 28,821.19/x
  3. Step 3: Cross multiply
    49,905.13x = 74,817.96 × 28,821.19
  4. Step 4: Simplify right side
    49,905.13x = 2,156,342,640.57
  5. Step 5: Solve for x
    x = 2,156,342,640.57/49,905.13
  6. Step 6: Final answer
    x = 43,208.84

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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.