Home / 55,780.38-76,977.84-30,286.74

Finding the Fourth Proportional to 55,780.38, 76,977.84 and 30,286.74

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Solution

The fourth proportional to 55,780.38, 76,977.84 and 30,286.74 is: 41,796.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,780.38 : 76,977.84 = 30,286.74 : x
  2. Step 2: Convert to fraction form
    55,780.38/76,977.84 = 30,286.74/x
  3. Step 3: Cross multiply
    55,780.38x = 76,977.84 × 30,286.74
  4. Step 4: Simplify right side
    55,780.38x = 2,331,407,825.84
  5. Step 5: Solve for x
    x = 2,331,407,825.84/55,780.38
  6. Step 6: Final answer
    x = 41,796.20

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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.