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Finding the Fourth Proportional to 54,000.60, 80,976.60 and 20,709.60

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Solution

The fourth proportional to 54,000.60, 80,976.60 and 20,709.60 is: 31,055.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,000.60 : 80,976.60 = 20,709.60 : x
  2. Step 2: Convert to fraction form
    54,000.60/80,976.60 = 20,709.60/x
  3. Step 3: Cross multiply
    54,000.60x = 80,976.60 × 20,709.60
  4. Step 4: Simplify right side
    54,000.60x = 1,676,992,995.36
  5. Step 5: Solve for x
    x = 1,676,992,995.36/54,000.60
  6. Step 6: Final answer
    x = 31,055.08

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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.