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Finding the Fourth Proportional to 54,654.20, 81,981.30 and 19,597.40

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Solution

The fourth proportional to 54,654.20, 81,981.30 and 19,597.40 is: 29,396.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,654.20 : 81,981.30 = 19,597.40 : x
  2. Step 2: Convert to fraction form
    54,654.20/81,981.30 = 19,597.40/x
  3. Step 3: Cross multiply
    54,654.20x = 81,981.30 × 19,597.40
  4. Step 4: Simplify right side
    54,654.20x = 1,606,620,328.62
  5. Step 5: Solve for x
    x = 1,606,620,328.62/54,654.20
  6. Step 6: Final answer
    x = 29,396.10

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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.