Home / 54,912.22-75,778.35-30,712.89

Finding the Fourth Proportional to 54,912.22, 75,778.35 and 30,712.89

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Solution

The fourth proportional to 54,912.22, 75,778.35 and 30,712.89 is: 42,383.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,912.22 : 75,778.35 = 30,712.89 : x
  2. Step 2: Convert to fraction form
    54,912.22/75,778.35 = 30,712.89/x
  3. Step 3: Cross multiply
    54,912.22x = 75,778.35 × 30,712.89
  4. Step 4: Simplify right side
    54,912.22x = 2,327,372,043.43
  5. Step 5: Solve for x
    x = 2,327,372,043.43/54,912.22
  6. Step 6: Final answer
    x = 42,383.50

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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.