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Finding the Fourth Proportional to 63,388.62, 87,477.64 and 34,709.49

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Solution

The fourth proportional to 63,388.62, 87,477.64 and 34,709.49 is: 47,899.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,388.62 : 87,477.64 = 34,709.49 : x
  2. Step 2: Convert to fraction form
    63,388.62/87,477.64 = 34,709.49/x
  3. Step 3: Cross multiply
    63,388.62x = 87,477.64 × 34,709.49
  4. Step 4: Simplify right side
    63,388.62x = 3,036,304,184.03
  5. Step 5: Solve for x
    x = 3,036,304,184.03/63,388.62
  6. Step 6: Final answer
    x = 47,899.83

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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.