Home / 56,853.03-78,425.69-39,882.54

Finding the Fourth Proportional to 56,853.03, 78,425.69 and 39,882.54

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Solution

The fourth proportional to 56,853.03, 78,425.69 and 39,882.54 is: 55,015.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,853.03 : 78,425.69 = 39,882.54 : x
  2. Step 2: Convert to fraction form
    56,853.03/78,425.69 = 39,882.54/x
  3. Step 3: Cross multiply
    56,853.03x = 78,425.69 × 39,882.54
  4. Step 4: Simplify right side
    56,853.03x = 3,127,815,519.04
  5. Step 5: Solve for x
    x = 3,127,815,519.04/56,853.03
  6. Step 6: Final answer
    x = 55,015.81

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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.