Home / 63,138.30-94,712.51-21,016.86

Finding the Fourth Proportional to 63,138.30, 94,712.51 and 21,016.86

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Solution

The fourth proportional to 63,138.30, 94,712.51 and 21,016.86 is: 31,526.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,138.30 : 94,712.51 = 21,016.86 : x
  2. Step 2: Convert to fraction form
    63,138.30/94,712.51 = 21,016.86/x
  3. Step 3: Cross multiply
    63,138.30x = 94,712.51 × 21,016.86
  4. Step 4: Simplify right side
    63,138.30x = 1,990,559,562.92
  5. Step 5: Solve for x
    x = 1,990,559,562.92/63,138.30
  6. Step 6: Final answer
    x = 31,526.97

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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.