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Finding the Fourth Proportional to 40,146.80, 60,220.20 and 29,778.80

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Solution

The fourth proportional to 40,146.80, 60,220.20 and 29,778.80 is: 44,668.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,146.80 : 60,220.20 = 29,778.80 : x
  2. Step 2: Convert to fraction form
    40,146.80/60,220.20 = 29,778.80/x
  3. Step 3: Cross multiply
    40,146.80x = 60,220.20 × 29,778.80
  4. Step 4: Simplify right side
    40,146.80x = 1,793,285,291.76
  5. Step 5: Solve for x
    x = 1,793,285,291.76/40,146.80
  6. Step 6: Final answer
    x = 44,668.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.