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Finding the Fourth Proportional to 57,203.60, 78,872.28 and 49,232.12

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Solution

The fourth proportional to 57,203.60, 78,872.28 and 49,232.12 is: 67,881.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,203.60 : 78,872.28 = 49,232.12 : x
  2. Step 2: Convert to fraction form
    57,203.60/78,872.28 = 49,232.12/x
  3. Step 3: Cross multiply
    57,203.60x = 78,872.28 × 49,232.12
  4. Step 4: Simplify right side
    57,203.60x = 3,883,049,553.63
  5. Step 5: Solve for x
    x = 3,883,049,553.63/57,203.60
  6. Step 6: Final answer
    x = 67,881.21

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.