Home / 55,780.22-76,977.36-30,286.88

Finding the Fourth Proportional to 55,780.22, 76,977.36 and 30,286.88

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Solution

The fourth proportional to 55,780.22, 76,977.36 and 30,286.88 is: 41,796.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,780.22 : 76,977.36 = 30,286.88 : x
  2. Step 2: Convert to fraction form
    55,780.22/76,977.36 = 30,286.88/x
  3. Step 3: Cross multiply
    55,780.22x = 76,977.36 × 30,286.88
  4. Step 4: Simplify right side
    55,780.22x = 2,331,404,065.04
  5. Step 5: Solve for x
    x = 2,331,404,065.04/55,780.22
  6. Step 6: Final answer
    x = 41,796.25

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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.