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Finding the Fourth Proportional to 54,265.20, 81,484.20 and 36,812.40

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Solution

The fourth proportional to 54,265.20, 81,484.20 and 36,812.40 is: 55,277.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,265.20 : 81,484.20 = 36,812.40 : x
  2. Step 2: Convert to fraction form
    54,265.20/81,484.20 = 36,812.40/x
  3. Step 3: Cross multiply
    54,265.20x = 81,484.20 × 36,812.40
  4. Step 4: Simplify right side
    54,265.20x = 2,999,628,964.08
  5. Step 5: Solve for x
    x = 2,999,628,964.08/54,265.20
  6. Step 6: Final answer
    x = 55,277.21

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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.