Home / 66,661.96-91,898.56-45,414.04

Finding the Fourth Proportional to 66,661.96, 91,898.56 and 45,414.04

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Solution

The fourth proportional to 66,661.96, 91,898.56 and 45,414.04 is: 62,606.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,661.96 : 91,898.56 = 45,414.04 : x
  2. Step 2: Convert to fraction form
    66,661.96/91,898.56 = 45,414.04/x
  3. Step 3: Cross multiply
    66,661.96x = 91,898.56 × 45,414.04
  4. Step 4: Simplify right side
    66,661.96x = 4,173,484,879.78
  5. Step 5: Solve for x
    x = 4,173,484,879.78/66,661.96
  6. Step 6: Final answer
    x = 62,606.69

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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.