Home / 55,171.74-76,137.75-30,020.70

Finding the Fourth Proportional to 55,171.74, 76,137.75 and 30,020.70

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Solution

The fourth proportional to 55,171.74, 76,137.75 and 30,020.70 is: 41,428.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,171.74 : 76,137.75 = 30,020.70 : x
  2. Step 2: Convert to fraction form
    55,171.74/76,137.75 = 30,020.70/x
  3. Step 3: Cross multiply
    55,171.74x = 76,137.75 × 30,020.70
  4. Step 4: Simplify right side
    55,171.74x = 2,285,708,551.43
  5. Step 5: Solve for x
    x = 2,285,708,551.43/55,171.74
  6. Step 6: Final answer
    x = 41,428.97

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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.