Home / 54,531.32-81,840.72-28,243.58

Finding the Fourth Proportional to 54,531.32, 81,840.72 and 28,243.58

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Solution

The fourth proportional to 54,531.32, 81,840.72 and 28,243.58 is: 42,388.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,531.32 : 81,840.72 = 28,243.58 : x
  2. Step 2: Convert to fraction form
    54,531.32/81,840.72 = 28,243.58/x
  3. Step 3: Cross multiply
    54,531.32x = 81,840.72 × 28,243.58
  4. Step 4: Simplify right side
    54,531.32x = 2,311,474,513.37
  5. Step 5: Solve for x
    x = 2,311,474,513.37/54,531.32
  6. Step 6: Final answer
    x = 42,388.02

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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.