Home / 86,321.28-119,134.72-48,602.88

Finding the Fourth Proportional to 86,321.28, 119,134.72 and 48,602.88

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Solution

The fourth proportional to 86,321.28, 119,134.72 and 48,602.88 is: 67,078.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,321.28 : 119,134.72 = 48,602.88 : x
  2. Step 2: Convert to fraction form
    86,321.28/119,134.72 = 48,602.88/x
  3. Step 3: Cross multiply
    86,321.28x = 119,134.72 × 48,602.88
  4. Step 4: Simplify right side
    86,321.28x = 5,790,290,499.99
  5. Step 5: Solve for x
    x = 5,790,290,499.99/86,321.28
  6. Step 6: Final answer
    x = 67,078.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.