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Finding the Fourth Proportional to 63,181.77, 87,119.77 and 51,660.74

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Solution

The fourth proportional to 63,181.77, 87,119.77 and 51,660.74 is: 71,233.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,181.77 : 87,119.77 = 51,660.74 : x
  2. Step 2: Convert to fraction form
    63,181.77/87,119.77 = 51,660.74/x
  3. Step 3: Cross multiply
    63,181.77x = 87,119.77 × 51,660.74
  4. Step 4: Simplify right side
    63,181.77x = 4,500,671,786.83
  5. Step 5: Solve for x
    x = 4,500,671,786.83/63,181.77
  6. Step 6: Final answer
    x = 71,233.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.