Home / 76,793.18-115,199.51-30,039.98

Finding the Fourth Proportional to 76,793.18, 115,199.51 and 30,039.98

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Solution

The fourth proportional to 76,793.18, 115,199.51 and 30,039.98 is: 45,063.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,793.18 : 115,199.51 = 30,039.98 : x
  2. Step 2: Convert to fraction form
    76,793.18/115,199.51 = 30,039.98/x
  3. Step 3: Cross multiply
    76,793.18x = 115,199.51 × 30,039.98
  4. Step 4: Simplify right side
    76,793.18x = 3,460,590,976.41
  5. Step 5: Solve for x
    x = 3,460,590,976.41/76,793.18
  6. Step 6: Final answer
    x = 45,063.78

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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.