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Finding the Fourth Proportional to 54,762.91, 82,144.36 and 21,498.64

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Solution

The fourth proportional to 54,762.91, 82,144.36 and 21,498.64 is: 32,247.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,762.91 : 82,144.36 = 21,498.64 : x
  2. Step 2: Convert to fraction form
    54,762.91/82,144.36 = 21,498.64/x
  3. Step 3: Cross multiply
    54,762.91x = 82,144.36 × 21,498.64
  4. Step 4: Simplify right side
    54,762.91x = 1,765,991,845.18
  5. Step 5: Solve for x
    x = 1,765,991,845.18/54,762.91
  6. Step 6: Final answer
    x = 32,247.96

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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.