Home / 55,331.48-82,971.24-20,246.60

Finding the Fourth Proportional to 55,331.48, 82,971.24 and 20,246.60

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Solution

The fourth proportional to 55,331.48, 82,971.24 and 20,246.60 is: 30,360.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,331.48 : 82,971.24 = 20,246.60 : x
  2. Step 2: Convert to fraction form
    55,331.48/82,971.24 = 20,246.60/x
  3. Step 3: Cross multiply
    55,331.48x = 82,971.24 × 20,246.60
  4. Step 4: Simplify right side
    55,331.48x = 1,679,885,507.78
  5. Step 5: Solve for x
    x = 1,679,885,507.78/55,331.48
  6. Step 6: Final answer
    x = 30,360.39

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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.