Home / 82,331.46-113,656.68-55,154.34

Finding the Fourth Proportional to 82,331.46, 113,656.68 and 55,154.34

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Solution

The fourth proportional to 82,331.46, 113,656.68 and 55,154.34 is: 76,139.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,331.46 : 113,656.68 = 55,154.34 : x
  2. Step 2: Convert to fraction form
    82,331.46/113,656.68 = 55,154.34/x
  3. Step 3: Cross multiply
    82,331.46x = 113,656.68 × 55,154.34
  4. Step 4: Simplify right side
    82,331.46x = 6,268,659,171.99
  5. Step 5: Solve for x
    x = 6,268,659,171.99/82,331.46
  6. Step 6: Final answer
    x = 76,139.29

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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.