Home / 66,505.32-91,776.09-36,289.89

Finding the Fourth Proportional to 66,505.32, 91,776.09 and 36,289.89

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Solution

The fourth proportional to 66,505.32, 91,776.09 and 36,289.89 is: 50,079.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,505.32 : 91,776.09 = 36,289.89 : x
  2. Step 2: Convert to fraction form
    66,505.32/91,776.09 = 36,289.89/x
  3. Step 3: Cross multiply
    66,505.32x = 91,776.09 × 36,289.89
  4. Step 4: Simplify right side
    66,505.32x = 3,330,544,210.73
  5. Step 5: Solve for x
    x = 3,330,544,210.73/66,505.32
  6. Step 6: Final answer
    x = 50,079.37

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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.