Home / 55,218.80-82,819.02-21,936.62

Finding the Fourth Proportional to 55,218.80, 82,819.02 and 21,936.62

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Solution

The fourth proportional to 55,218.80, 82,819.02 and 21,936.62 is: 32,901.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,218.80 : 82,819.02 = 21,936.62 : x
  2. Step 2: Convert to fraction form
    55,218.80/82,819.02 = 21,936.62/x
  3. Step 3: Cross multiply
    55,218.80x = 82,819.02 × 21,936.62
  4. Step 4: Simplify right side
    55,218.80x = 1,816,769,370.51
  5. Step 5: Solve for x
    x = 1,816,769,370.51/55,218.80
  6. Step 6: Final answer
    x = 32,901.28

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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.