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Finding the Fourth Proportional to 63,162, 87,162.18 and 34,480.68

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Solution

The fourth proportional to 63,162, 87,162.18 and 34,480.68 is: 47,582.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,162 : 87,162.18 = 34,480.68 : x
  2. Step 2: Convert to fraction form
    63,162/87,162.18 = 34,480.68/x
  3. Step 3: Cross multiply
    63,162x = 87,162.18 × 34,480.68
  4. Step 4: Simplify right side
    63,162x = 3,005,411,236.68
  5. Step 5: Solve for x
    x = 3,005,411,236.68/63,162
  6. Step 6: Final answer
    x = 47,582.59

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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.