Home / 55,144.85-76,113.41-31,285.49

Finding the Fourth Proportional to 55,144.85, 76,113.41 and 31,285.49

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Solution

The fourth proportional to 55,144.85, 76,113.41 and 31,285.49 is: 43,181.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,144.85 : 76,113.41 = 31,285.49 : x
  2. Step 2: Convert to fraction form
    55,144.85/76,113.41 = 31,285.49/x
  3. Step 3: Cross multiply
    55,144.85x = 76,113.41 × 31,285.49
  4. Step 4: Simplify right side
    55,144.85x = 2,381,244,790.43
  5. Step 5: Solve for x
    x = 2,381,244,790.43/55,144.85
  6. Step 6: Final answer
    x = 43,181.64

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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.