Home / 76,422.20-114,633.30-48,428.60

Finding the Fourth Proportional to 76,422.20, 114,633.30 and 48,428.60

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Solution

The fourth proportional to 76,422.20, 114,633.30 and 48,428.60 is: 72,642.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,422.20 : 114,633.30 = 48,428.60 : x
  2. Step 2: Convert to fraction form
    76,422.20/114,633.30 = 48,428.60/x
  3. Step 3: Cross multiply
    76,422.20x = 114,633.30 × 48,428.60
  4. Step 4: Simplify right side
    76,422.20x = 5,551,530,232.38
  5. Step 5: Solve for x
    x = 5,551,530,232.38/76,422.20
  6. Step 6: Final answer
    x = 72,642.90

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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.