Home / 52,786.23-72,845-28,912.96

Finding the Fourth Proportional to 52,786.23, 72,845 and 28,912.96

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Solution

The fourth proportional to 52,786.23, 72,845 and 28,912.96 is: 39,899.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,786.23 : 72,845 = 28,912.96 : x
  2. Step 2: Convert to fraction form
    52,786.23/72,845 = 28,912.96/x
  3. Step 3: Cross multiply
    52,786.23x = 72,845 × 28,912.96
  4. Step 4: Simplify right side
    52,786.23x = 2,106,164,571.20
  5. Step 5: Solve for x
    x = 2,106,164,571.20/52,786.23
  6. Step 6: Final answer
    x = 39,899.89

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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.