Home / 76,967.28-115,450.88-56,040.48

Finding the Fourth Proportional to 76,967.28, 115,450.88 and 56,040.48

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Solution

The fourth proportional to 76,967.28, 115,450.88 and 56,040.48 is: 84,060.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,967.28 : 115,450.88 = 56,040.48 : x
  2. Step 2: Convert to fraction form
    76,967.28/115,450.88 = 56,040.48/x
  3. Step 3: Cross multiply
    76,967.28x = 115,450.88 × 56,040.48
  4. Step 4: Simplify right side
    76,967.28x = 6,469,922,451.42
  5. Step 5: Solve for x
    x = 6,469,922,451.42/76,967.28
  6. Step 6: Final answer
    x = 84,060.69

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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.