Home / 76,086.18-114,169.07-31,140.90

Finding the Fourth Proportional to 76,086.18, 114,169.07 and 31,140.90

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Solution

The fourth proportional to 76,086.18, 114,169.07 and 31,140.90 is: 46,727.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,086.18 : 114,169.07 = 31,140.90 : x
  2. Step 2: Convert to fraction form
    76,086.18/114,169.07 = 31,140.90/x
  3. Step 3: Cross multiply
    76,086.18x = 114,169.07 × 31,140.90
  4. Step 4: Simplify right side
    76,086.18x = 3,555,327,591.96
  5. Step 5: Solve for x
    x = 3,555,327,591.96/76,086.18
  6. Step 6: Final answer
    x = 46,727.64

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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.