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Finding the Fourth Proportional to 54,695.82, 82,010.90 and 21,376.16

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Solution

The fourth proportional to 54,695.82, 82,010.90 and 21,376.16 is: 32,051.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,695.82 : 82,010.90 = 21,376.16 : x
  2. Step 2: Convert to fraction form
    54,695.82/82,010.90 = 21,376.16/x
  3. Step 3: Cross multiply
    54,695.82x = 82,010.90 × 21,376.16
  4. Step 4: Simplify right side
    54,695.82x = 1,753,078,120.14
  5. Step 5: Solve for x
    x = 1,753,078,120.14/54,695.82
  6. Step 6: Final answer
    x = 32,051.41

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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.