Home / 275,731.20-413,625.60-76,051.68

Finding the Fourth Proportional to 275,731.20, 413,625.60 and 76,051.68

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Solution

The fourth proportional to 275,731.20, 413,625.60 and 76,051.68 is: 114,085.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,731.20 : 413,625.60 = 76,051.68 : x
  2. Step 2: Convert to fraction form
    275,731.20/413,625.60 = 76,051.68/x
  3. Step 3: Cross multiply
    275,731.20x = 413,625.60 × 76,051.68
  4. Step 4: Simplify right side
    275,731.20x = 31,456,921,771.01
  5. Step 5: Solve for x
    x = 31,456,921,771.01/275,731.20
  6. Step 6: Final answer
    x = 114,085.46

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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.