Home / 55,181.25-76,144.84-30,976.66

Finding the Fourth Proportional to 55,181.25, 76,144.84 and 30,976.66

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Solution

The fourth proportional to 55,181.25, 76,144.84 and 30,976.66 is: 42,744.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,181.25 : 76,144.84 = 30,976.66 : x
  2. Step 2: Convert to fraction form
    55,181.25/76,144.84 = 30,976.66/x
  3. Step 3: Cross multiply
    55,181.25x = 76,144.84 × 30,976.66
  4. Step 4: Simplify right side
    55,181.25x = 2,358,712,819.43
  5. Step 5: Solve for x
    x = 2,358,712,819.43/55,181.25
  6. Step 6: Final answer
    x = 42,744.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.