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Finding the Fourth Proportional to 54,663.93, 82,016.55 and 21,407.76

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Solution

The fourth proportional to 54,663.93, 82,016.55 and 21,407.76 is: 32,119.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,663.93 : 82,016.55 = 21,407.76 : x
  2. Step 2: Convert to fraction form
    54,663.93/82,016.55 = 21,407.76/x
  3. Step 3: Cross multiply
    54,663.93x = 82,016.55 × 21,407.76
  4. Step 4: Simplify right side
    54,663.93x = 1,755,790,618.43
  5. Step 5: Solve for x
    x = 1,755,790,618.43/54,663.93
  6. Step 6: Final answer
    x = 32,119.73

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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.