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Finding the Fourth Proportional to 54,153.60, 81,230.40 and 27,909.60

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Solution

The fourth proportional to 54,153.60, 81,230.40 and 27,909.60 is: 41,864.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,153.60 : 81,230.40 = 27,909.60 : x
  2. Step 2: Convert to fraction form
    54,153.60/81,230.40 = 27,909.60/x
  3. Step 3: Cross multiply
    54,153.60x = 81,230.40 × 27,909.60
  4. Step 4: Simplify right side
    54,153.60x = 2,267,107,971.84
  5. Step 5: Solve for x
    x = 2,267,107,971.84/54,153.60
  6. Step 6: Final answer
    x = 41,864.40

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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.