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Finding the Fourth Proportional to 63,513, 87,649.15 and 34,830.85

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Solution

The fourth proportional to 63,513, 87,649.15 and 34,830.85 is: 48,067.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,513 : 87,649.15 = 34,830.85 : x
  2. Step 2: Convert to fraction form
    63,513/87,649.15 = 34,830.85/x
  3. Step 3: Cross multiply
    63,513x = 87,649.15 × 34,830.85
  4. Step 4: Simplify right side
    63,513x = 3,052,894,396.28
  5. Step 5: Solve for x
    x = 3,052,894,396.28/63,513
  6. Step 6: Final answer
    x = 48,067.24

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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.