Home / 55,338.58-82,958.55-20,270.04

Finding the Fourth Proportional to 55,338.58, 82,958.55 and 20,270.04

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Solution

The fourth proportional to 55,338.58, 82,958.55 and 20,270.04 is: 30,386.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,338.58 : 82,958.55 = 20,270.04 : x
  2. Step 2: Convert to fraction form
    55,338.58/82,958.55 = 20,270.04/x
  3. Step 3: Cross multiply
    55,338.58x = 82,958.55 × 20,270.04
  4. Step 4: Simplify right side
    55,338.58x = 1,681,573,126.84
  5. Step 5: Solve for x
    x = 1,681,573,126.84/55,338.58
  6. Step 6: Final answer
    x = 30,386.99

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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.