Home / 55,112.78-76,093.20-36,990.68

Finding the Fourth Proportional to 55,112.78, 76,093.20 and 36,990.68

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Solution

The fourth proportional to 55,112.78, 76,093.20 and 36,990.68 is: 51,072.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,112.78 : 76,093.20 = 36,990.68 : x
  2. Step 2: Convert to fraction form
    55,112.78/76,093.20 = 36,990.68/x
  3. Step 3: Cross multiply
    55,112.78x = 76,093.20 × 36,990.68
  4. Step 4: Simplify right side
    55,112.78x = 2,814,739,273.40
  5. Step 5: Solve for x
    x = 2,814,739,273.40/55,112.78
  6. Step 6: Final answer
    x = 51,072.35

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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.