Home / 76,942.80-115,511.40-41,432.40

Finding the Fourth Proportional to 76,942.80, 115,511.40 and 41,432.40

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Solution

The fourth proportional to 76,942.80, 115,511.40 and 41,432.40 is: 62,200.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,942.80 : 115,511.40 = 41,432.40 : x
  2. Step 2: Convert to fraction form
    76,942.80/115,511.40 = 41,432.40/x
  3. Step 3: Cross multiply
    76,942.80x = 115,511.40 × 41,432.40
  4. Step 4: Simplify right side
    76,942.80x = 4,785,914,529.36
  5. Step 5: Solve for x
    x = 4,785,914,529.36/76,942.80
  6. Step 6: Final answer
    x = 62,200.94

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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.