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Finding the Fourth Proportional to 54,261.64, 81,400.62 and 19,201.64

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Solution

The fourth proportional to 54,261.64, 81,400.62 and 19,201.64 is: 28,805.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,261.64 : 81,400.62 = 19,201.64 : x
  2. Step 2: Convert to fraction form
    54,261.64/81,400.62 = 19,201.64/x
  3. Step 3: Cross multiply
    54,261.64x = 81,400.62 × 19,201.64
  4. Step 4: Simplify right side
    54,261.64x = 1,563,025,401.02
  5. Step 5: Solve for x
    x = 1,563,025,401.02/54,261.64
  6. Step 6: Final answer
    x = 28,805.35

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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.