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Finding the Fourth Proportional to 49,973.80, 74,912.70 and 28,892.20

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Solution

The fourth proportional to 49,973.80, 74,912.70 and 28,892.20 is: 43,310.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,973.80 : 74,912.70 = 28,892.20 : x
  2. Step 2: Convert to fraction form
    49,973.80/74,912.70 = 28,892.20/x
  3. Step 3: Cross multiply
    49,973.80x = 74,912.70 × 28,892.20
  4. Step 4: Simplify right side
    49,973.80x = 2,164,392,710.94
  5. Step 5: Solve for x
    x = 2,164,392,710.94/49,973.80
  6. Step 6: Final answer
    x = 43,310.55

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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.