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Finding the Fourth Proportional to 53,801.20, 80,766.60 and 30,127.60

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Solution

The fourth proportional to 53,801.20, 80,766.60 and 30,127.60 is: 45,227.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,801.20 : 80,766.60 = 30,127.60 : x
  2. Step 2: Convert to fraction form
    53,801.20/80,766.60 = 30,127.60/x
  3. Step 3: Cross multiply
    53,801.20x = 80,766.60 × 30,127.60
  4. Step 4: Simplify right side
    53,801.20x = 2,433,303,818.16
  5. Step 5: Solve for x
    x = 2,433,303,818.16/53,801.20
  6. Step 6: Final answer
    x = 45,227.69

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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.