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Finding the Fourth Proportional to 66,566.18, 91,857.89 and 36,345.67

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Solution

The fourth proportional to 66,566.18, 91,857.89 and 36,345.67 is: 50,155.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,566.18 : 91,857.89 = 36,345.67 : x
  2. Step 2: Convert to fraction form
    66,566.18/91,857.89 = 36,345.67/x
  3. Step 3: Cross multiply
    66,566.18x = 91,857.89 × 36,345.67
  4. Step 4: Simplify right side
    66,566.18x = 3,338,636,418.06
  5. Step 5: Solve for x
    x = 3,338,636,418.06/66,566.18
  6. Step 6: Final answer
    x = 50,155.14

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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.