Home / 81,824.21-122,722.39-22,646.01

Finding the Fourth Proportional to 81,824.21, 122,722.39 and 22,646.01

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Solution

The fourth proportional to 81,824.21, 122,722.39 and 22,646.01 is: 33,965.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,824.21 : 122,722.39 = 22,646.01 : x
  2. Step 2: Convert to fraction form
    81,824.21/122,722.39 = 22,646.01/x
  3. Step 3: Cross multiply
    81,824.21x = 122,722.39 × 22,646.01
  4. Step 4: Simplify right side
    81,824.21x = 2,779,172,959.68
  5. Step 5: Solve for x
    x = 2,779,172,959.68/81,824.21
  6. Step 6: Final answer
    x = 33,965.17

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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.