Home / 66,663.38-91,998.78-37,983.44

Finding the Fourth Proportional to 66,663.38, 91,998.78 and 37,983.44

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Solution

The fourth proportional to 66,663.38, 91,998.78 and 37,983.44 is: 52,419.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,663.38 : 91,998.78 = 37,983.44 : x
  2. Step 2: Convert to fraction form
    66,663.38/91,998.78 = 37,983.44/x
  3. Step 3: Cross multiply
    66,663.38x = 91,998.78 × 37,983.44
  4. Step 4: Simplify right side
    66,663.38x = 3,494,430,140.20
  5. Step 5: Solve for x
    x = 3,494,430,140.20/66,663.38
  6. Step 6: Final answer
    x = 52,419.04

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1.5x scale

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.