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Finding the Fourth Proportional to 66,262, 91,441.56 and 36,454

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Solution

The fourth proportional to 66,262, 91,441.56 and 36,454 is: 50,306.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,262 : 91,441.56 = 36,454 : x
  2. Step 2: Convert to fraction form
    66,262/91,441.56 = 36,454/x
  3. Step 3: Cross multiply
    66,262x = 91,441.56 × 36,454
  4. Step 4: Simplify right side
    66,262x = 3,333,410,628.24
  5. Step 5: Solve for x
    x = 3,333,410,628.24/66,262
  6. Step 6: Final answer
    x = 50,306.52

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Why These Related Problems?

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