Home / 55,101.28-76,039.40-29,950.78

Finding the Fourth Proportional to 55,101.28, 76,039.40 and 29,950.78

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Solution

The fourth proportional to 55,101.28, 76,039.40 and 29,950.78 is: 41,331.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,101.28 : 76,039.40 = 29,950.78 : x
  2. Step 2: Convert to fraction form
    55,101.28/76,039.40 = 29,950.78/x
  3. Step 3: Cross multiply
    55,101.28x = 76,039.40 × 29,950.78
  4. Step 4: Simplify right side
    55,101.28x = 2,277,439,340.73
  5. Step 5: Solve for x
    x = 2,277,439,340.73/55,101.28
  6. Step 6: Final answer
    x = 41,331.88

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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.