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Finding the Fourth Proportional to 72,850.44, 109,230.40 and 30,708.84

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Solution

The fourth proportional to 72,850.44, 109,230.40 and 30,708.84 is: 46,044.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,850.44 : 109,230.40 = 30,708.84 : x
  2. Step 2: Convert to fraction form
    72,850.44/109,230.40 = 30,708.84/x
  3. Step 3: Cross multiply
    72,850.44x = 109,230.40 × 30,708.84
  4. Step 4: Simplify right side
    72,850.44x = 3,354,338,876.74
  5. Step 5: Solve for x
    x = 3,354,338,876.74/72,850.44
  6. Step 6: Final answer
    x = 46,044.18

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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.