Home / 76,828.80-115,340.40-41,318.40

Finding the Fourth Proportional to 76,828.80, 115,340.40 and 41,318.40

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Solution

The fourth proportional to 76,828.80, 115,340.40 and 41,318.40 is: 62,029.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,828.80 : 115,340.40 = 41,318.40 : x
  2. Step 2: Convert to fraction form
    76,828.80/115,340.40 = 41,318.40/x
  3. Step 3: Cross multiply
    76,828.80x = 115,340.40 × 41,318.40
  4. Step 4: Simplify right side
    76,828.80x = 4,765,680,783.36
  5. Step 5: Solve for x
    x = 4,765,680,783.36/76,828.80
  6. Step 6: Final answer
    x = 62,029.87

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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.