Home / 55,181.06-76,144.59-30,976.48

Finding the Fourth Proportional to 55,181.06, 76,144.59 and 30,976.48

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Solution

The fourth proportional to 55,181.06, 76,144.59 and 30,976.48 is: 42,744.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,181.06 : 76,144.59 = 30,976.48 : x
  2. Step 2: Convert to fraction form
    55,181.06/76,144.59 = 30,976.48/x
  3. Step 3: Cross multiply
    55,181.06x = 76,144.59 × 30,976.48
  4. Step 4: Simplify right side
    55,181.06x = 2,358,691,369.24
  5. Step 5: Solve for x
    x = 2,358,691,369.24/55,181.06
  6. Step 6: Final answer
    x = 42,744.58

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1.5x scale

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.