Home / 76,315.20-114,347.52-73,399.20

Finding the Fourth Proportional to 76,315.20, 114,347.52 and 73,399.20

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Solution

The fourth proportional to 76,315.20, 114,347.52 and 73,399.20 is: 109,978.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,315.20 : 114,347.52 = 73,399.20 : x
  2. Step 2: Convert to fraction form
    76,315.20/114,347.52 = 73,399.20/x
  3. Step 3: Cross multiply
    76,315.20x = 114,347.52 × 73,399.20
  4. Step 4: Simplify right side
    76,315.20x = 8,393,016,489.98
  5. Step 5: Solve for x
    x = 8,393,016,489.98/76,315.20
  6. Step 6: Final answer
    x = 109,978.31

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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.