Home / 54,654.40-75,422.32-30,783.44

Finding the Fourth Proportional to 54,654.40, 75,422.32 and 30,783.44

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Solution

The fourth proportional to 54,654.40, 75,422.32 and 30,783.44 is: 42,480.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,654.40 : 75,422.32 = 30,783.44 : x
  2. Step 2: Convert to fraction form
    54,654.40/75,422.32 = 30,783.44/x
  3. Step 3: Cross multiply
    54,654.40x = 75,422.32 × 30,783.44
  4. Step 4: Simplify right side
    54,654.40x = 2,321,758,462.38
  5. Step 5: Solve for x
    x = 2,321,758,462.38/54,654.40
  6. Step 6: Final answer
    x = 42,480.72

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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.