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Finding the Fourth Proportional to 63,130.62, 87,131.53 and 37,638.64

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Solution

The fourth proportional to 63,130.62, 87,131.53 and 37,638.64 is: 51,948.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,130.62 : 87,131.53 = 37,638.64 : x
  2. Step 2: Convert to fraction form
    63,130.62/87,131.53 = 37,638.64/x
  3. Step 3: Cross multiply
    63,130.62x = 87,131.53 × 37,638.64
  4. Step 4: Simplify right side
    63,130.62x = 3,279,512,446.28
  5. Step 5: Solve for x
    x = 3,279,512,446.28/63,130.62
  6. Step 6: Final answer
    x = 51,948.04

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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.