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Finding the Fourth Proportional to 72,203.05, 108,230.73 and 27,812.40

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Solution

The fourth proportional to 72,203.05, 108,230.73 and 27,812.40 is: 41,690.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,203.05 : 108,230.73 = 27,812.40 : x
  2. Step 2: Convert to fraction form
    72,203.05/108,230.73 = 27,812.40/x
  3. Step 3: Cross multiply
    72,203.05x = 108,230.73 × 27,812.40
  4. Step 4: Simplify right side
    72,203.05x = 3,010,156,355.05
  5. Step 5: Solve for x
    x = 3,010,156,355.05/72,203.05
  6. Step 6: Final answer
    x = 41,690.16

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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.