Home / 57,867.41-86,808.06-20,419.75

Finding the Fourth Proportional to 57,867.41, 86,808.06 and 20,419.75

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Solution

The fourth proportional to 57,867.41, 86,808.06 and 20,419.75 is: 30,632.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,867.41 : 86,808.06 = 20,419.75 : x
  2. Step 2: Convert to fraction form
    57,867.41/86,808.06 = 20,419.75/x
  3. Step 3: Cross multiply
    57,867.41x = 86,808.06 × 20,419.75
  4. Step 4: Simplify right side
    57,867.41x = 1,772,598,781.09
  5. Step 5: Solve for x
    x = 1,772,598,781.09/57,867.41
  6. Step 6: Final answer
    x = 30,632.07

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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.