Home / 86,933.76-130,167.03-55,171.86

Finding the Fourth Proportional to 86,933.76, 130,167.03 and 55,171.86

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Solution

The fourth proportional to 86,933.76, 130,167.03 and 55,171.86 is: 82,609.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,933.76 : 130,167.03 = 55,171.86 : x
  2. Step 2: Convert to fraction form
    86,933.76/130,167.03 = 55,171.86/x
  3. Step 3: Cross multiply
    86,933.76x = 130,167.03 × 55,171.86
  4. Step 4: Simplify right side
    86,933.76x = 7,181,557,155.78
  5. Step 5: Solve for x
    x = 7,181,557,155.78/86,933.76
  6. Step 6: Final answer
    x = 82,609.53

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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.