Home / 56,087.68-84,119.60-21,029.92

Finding the Fourth Proportional to 56,087.68, 84,119.60 and 21,029.92

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Solution

The fourth proportional to 56,087.68, 84,119.60 and 21,029.92 is: 31,540.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,087.68 : 84,119.60 = 21,029.92 : x
  2. Step 2: Convert to fraction form
    56,087.68/84,119.60 = 21,029.92/x
  3. Step 3: Cross multiply
    56,087.68x = 84,119.60 × 21,029.92
  4. Step 4: Simplify right side
    56,087.68x = 1,769,028,458.43
  5. Step 5: Solve for x
    x = 1,769,028,458.43/56,087.68
  6. Step 6: Final answer
    x = 31,540.41

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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.