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Finding the Fourth Proportional to 47,344.40, 70,930.20 and 28,854.80

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Solution

The fourth proportional to 47,344.40, 70,930.20 and 28,854.80 is: 43,229.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,344.40 : 70,930.20 = 28,854.80 : x
  2. Step 2: Convert to fraction form
    47,344.40/70,930.20 = 28,854.80/x
  3. Step 3: Cross multiply
    47,344.40x = 70,930.20 × 28,854.80
  4. Step 4: Simplify right side
    47,344.40x = 2,046,676,734.96
  5. Step 5: Solve for x
    x = 2,046,676,734.96/47,344.40
  6. Step 6: Final answer
    x = 43,229.54

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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.