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Finding the Fourth Proportional to 49,854.97, 68,799.91 and 28,638.34

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Solution

The fourth proportional to 49,854.97, 68,799.91 and 28,638.34 is: 39,520.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,854.97 : 68,799.91 = 28,638.34 : x
  2. Step 2: Convert to fraction form
    49,854.97/68,799.91 = 28,638.34/x
  3. Step 3: Cross multiply
    49,854.97x = 68,799.91 × 28,638.34
  4. Step 4: Simplify right side
    49,854.97x = 1,970,315,214.55
  5. Step 5: Solve for x
    x = 1,970,315,214.55/49,854.97
  6. Step 6: Final answer
    x = 39,520.94

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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.