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Finding the Fourth Proportional to 54,958.40, 82,437.60 and 43,148.60

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Solution

The fourth proportional to 54,958.40, 82,437.60 and 43,148.60 is: 64,722.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,958.40 : 82,437.60 = 43,148.60 : x
  2. Step 2: Convert to fraction form
    54,958.40/82,437.60 = 43,148.60/x
  3. Step 3: Cross multiply
    54,958.40x = 82,437.60 × 43,148.60
  4. Step 4: Simplify right side
    54,958.40x = 3,557,067,027.36
  5. Step 5: Solve for x
    x = 3,557,067,027.36/54,958.40
  6. Step 6: Final answer
    x = 64,722.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.