Home / 54,260.30-81,390.45-45,512.30

Finding the Fourth Proportional to 54,260.30, 81,390.45 and 45,512.30

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Solution

The fourth proportional to 54,260.30, 81,390.45 and 45,512.30 is: 68,268.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,260.30 : 81,390.45 = 45,512.30 : x
  2. Step 2: Convert to fraction form
    54,260.30/81,390.45 = 45,512.30/x
  3. Step 3: Cross multiply
    54,260.30x = 81,390.45 × 45,512.30
  4. Step 4: Simplify right side
    54,260.30x = 3,704,266,577.54
  5. Step 5: Solve for x
    x = 3,704,266,577.54/54,260.30
  6. Step 6: Final answer
    x = 68,268.45

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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.