Home / 312,731.17-469,096.89-76,072.39

Finding the Fourth Proportional to 312,731.17, 469,096.89 and 76,072.39

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Solution

The fourth proportional to 312,731.17, 469,096.89 and 76,072.39 is: 114,108.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,731.17 : 469,096.89 = 76,072.39 : x
  2. Step 2: Convert to fraction form
    312,731.17/469,096.89 = 76,072.39/x
  3. Step 3: Cross multiply
    312,731.17x = 469,096.89 × 76,072.39
  4. Step 4: Simplify right side
    312,731.17x = 35,685,321,563.87
  5. Step 5: Solve for x
    x = 35,685,321,563.87/312,731.17
  6. Step 6: Final answer
    x = 114,108.62

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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.