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Finding the Fourth Proportional to 54,058.64, 81,129.72 and 27,786.32

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Solution

The fourth proportional to 54,058.64, 81,129.72 and 27,786.32 is: 41,700.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,058.64 : 81,129.72 = 27,786.32 : x
  2. Step 2: Convert to fraction form
    54,058.64/81,129.72 = 27,786.32/x
  3. Step 3: Cross multiply
    54,058.64x = 81,129.72 × 27,786.32
  4. Step 4: Simplify right side
    54,058.64x = 2,254,296,361.43
  5. Step 5: Solve for x
    x = 2,254,296,361.43/54,058.64
  6. Step 6: Final answer
    x = 41,700.94

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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.