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Finding the Fourth Proportional to 66,586, 91,888.68 and 36,779.92

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Solution

The fourth proportional to 66,586, 91,888.68 and 36,779.92 is: 50,756.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,586 : 91,888.68 = 36,779.92 : x
  2. Step 2: Convert to fraction form
    66,586/91,888.68 = 36,779.92/x
  3. Step 3: Cross multiply
    66,586x = 91,888.68 × 36,779.92
  4. Step 4: Simplify right side
    66,586x = 3,379,658,299.31
  5. Step 5: Solve for x
    x = 3,379,658,299.31/66,586
  6. Step 6: Final answer
    x = 50,756.29

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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.