Home / 66,586.08-91,888.64-36,778.08

Finding the Fourth Proportional to 66,586.08, 91,888.64 and 36,778.08

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Solution

The fourth proportional to 66,586.08, 91,888.64 and 36,778.08 is: 50,753.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,586.08 : 91,888.64 = 36,778.08 : x
  2. Step 2: Convert to fraction form
    66,586.08/91,888.64 = 36,778.08/x
  3. Step 3: Cross multiply
    66,586.08x = 91,888.64 × 36,778.08
  4. Step 4: Simplify right side
    66,586.08x = 3,379,487,753.01
  5. Step 5: Solve for x
    x = 3,379,487,753.01/66,586.08
  6. Step 6: Final answer
    x = 50,753.67

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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.