Home / 55,127.76-76,066.92-31,249.56

Finding the Fourth Proportional to 55,127.76, 76,066.92 and 31,249.56

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Solution

The fourth proportional to 55,127.76, 76,066.92 and 31,249.56 is: 43,119.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,127.76 : 76,066.92 = 31,249.56 : x
  2. Step 2: Convert to fraction form
    55,127.76/76,066.92 = 31,249.56/x
  3. Step 3: Cross multiply
    55,127.76x = 76,066.92 × 31,249.56
  4. Step 4: Simplify right side
    55,127.76x = 2,377,057,780.56
  5. Step 5: Solve for x
    x = 2,377,057,780.56/55,127.76
  6. Step 6: Final answer
    x = 43,119.07

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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.