Home / 55,171.20-82,732.26-15,719.40

Finding the Fourth Proportional to 55,171.20, 82,732.26 and 15,719.40

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Solution

The fourth proportional to 55,171.20, 82,732.26 and 15,719.40 is: 23,572.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,171.20 : 82,732.26 = 15,719.40 : x
  2. Step 2: Convert to fraction form
    55,171.20/82,732.26 = 15,719.40/x
  3. Step 3: Cross multiply
    55,171.20x = 82,732.26 × 15,719.40
  4. Step 4: Simplify right side
    55,171.20x = 1,300,501,487.84
  5. Step 5: Solve for x
    x = 1,300,501,487.84/55,171.20
  6. Step 6: Final answer
    x = 23,572.11

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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.