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Finding the Fourth Proportional to 63,162.80, 87,164.12 and 34,867.88

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Solution

The fourth proportional to 63,162.80, 87,164.12 and 34,867.88 is: 48,117.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,162.80 : 87,164.12 = 34,867.88 : x
  2. Step 2: Convert to fraction form
    63,162.80/87,164.12 = 34,867.88/x
  3. Step 3: Cross multiply
    63,162.80x = 87,164.12 × 34,867.88
  4. Step 4: Simplify right side
    63,162.80x = 3,039,227,727.81
  5. Step 5: Solve for x
    x = 3,039,227,727.81/63,162.80
  6. Step 6: Final answer
    x = 48,117.37

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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.