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Finding the Fourth Proportional to 54,164.80, 81,101.40 and 54,164.80

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Solution

The fourth proportional to 54,164.80, 81,101.40 and 54,164.80 is: 81,101.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,164.80 : 81,101.40 = 54,164.80 : x
  2. Step 2: Convert to fraction form
    54,164.80/81,101.40 = 54,164.80/x
  3. Step 3: Cross multiply
    54,164.80x = 81,101.40 × 54,164.80
  4. Step 4: Simplify right side
    54,164.80x = 4,392,841,110.72
  5. Step 5: Solve for x
    x = 4,392,841,110.72/54,164.80
  6. Step 6: Final answer
    x = 81,101.40

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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.