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Finding the Fourth Proportional to 81,262.88, 112,153.16 and 45,454.88

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Solution

The fourth proportional to 81,262.88, 112,153.16 and 45,454.88 is: 62,733.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,262.88 : 112,153.16 = 45,454.88 : x
  2. Step 2: Convert to fraction form
    81,262.88/112,153.16 = 45,454.88/x
  3. Step 3: Cross multiply
    81,262.88x = 112,153.16 × 45,454.88
  4. Step 4: Simplify right side
    81,262.88x = 5,097,908,429.42
  5. Step 5: Solve for x
    x = 5,097,908,429.42/81,262.88
  6. Step 6: Final answer
    x = 62,733.54

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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.