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Finding the Fourth Proportional to 72,197.32, 108,314.43 and 27,812.17

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Solution

The fourth proportional to 72,197.32, 108,314.43 and 27,812.17 is: 41,725.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,197.32 : 108,314.43 = 27,812.17 : x
  2. Step 2: Convert to fraction form
    72,197.32/108,314.43 = 27,812.17/x
  3. Step 3: Cross multiply
    72,197.32x = 108,314.43 × 27,812.17
  4. Step 4: Simplify right side
    72,197.32x = 3,012,459,340.61
  5. Step 5: Solve for x
    x = 3,012,459,340.61/72,197.32
  6. Step 6: Final answer
    x = 41,725.36

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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.