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Finding the Fourth Proportional to 63,252.72, 87,111 and 61,874.88

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Solution

The fourth proportional to 63,252.72, 87,111 and 61,874.88 is: 85,213.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,252.72 : 87,111 = 61,874.88 : x
  2. Step 2: Convert to fraction form
    63,252.72/87,111 = 61,874.88/x
  3. Step 3: Cross multiply
    63,252.72x = 87,111 × 61,874.88
  4. Step 4: Simplify right side
    63,252.72x = 5,389,982,671.68
  5. Step 5: Solve for x
    x = 5,389,982,671.68/63,252.72
  6. Step 6: Final answer
    x = 85,213.45

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1.5x scale

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.