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Finding the Fourth Proportional to 66,536.20, 99,754.38 and 40,235.56

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Solution

The fourth proportional to 66,536.20, 99,754.38 and 40,235.56 is: 60,323.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,536.20 : 99,754.38 = 40,235.56 : x
  2. Step 2: Convert to fraction form
    66,536.20/99,754.38 = 40,235.56/x
  3. Step 3: Cross multiply
    66,536.20x = 99,754.38 × 40,235.56
  4. Step 4: Simplify right side
    66,536.20x = 4,013,673,341.75
  5. Step 5: Solve for x
    x = 4,013,673,341.75/66,536.20
  6. Step 6: Final answer
    x = 60,323.15

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.