Home / 55,127.70-76,069.89-31,249.62

Finding the Fourth Proportional to 55,127.70, 76,069.89 and 31,249.62

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Solution

The fourth proportional to 55,127.70, 76,069.89 and 31,249.62 is: 43,120.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,127.70 : 76,069.89 = 31,249.62 : x
  2. Step 2: Convert to fraction form
    55,127.70/76,069.89 = 31,249.62/x
  3. Step 3: Cross multiply
    55,127.70x = 76,069.89 × 31,249.62
  4. Step 4: Simplify right side
    55,127.70x = 2,377,155,155.94
  5. Step 5: Solve for x
    x = 2,377,155,155.94/55,127.70
  6. Step 6: Final answer
    x = 43,120.88

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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.