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Finding the Fourth Proportional to 63,580.08, 87,713.10 and 38,415

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Solution

The fourth proportional to 63,580.08, 87,713.10 and 38,415 is: 52,996.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,580.08 : 87,713.10 = 38,415 : x
  2. Step 2: Convert to fraction form
    63,580.08/87,713.10 = 38,415/x
  3. Step 3: Cross multiply
    63,580.08x = 87,713.10 × 38,415
  4. Step 4: Simplify right side
    63,580.08x = 3,369,498,736.50
  5. Step 5: Solve for x
    x = 3,369,498,736.50/63,580.08
  6. Step 6: Final answer
    x = 52,996.14

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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.