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Finding the Fourth Proportional to 69,101.40, 95,361.81 and 38,887.80

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Solution

The fourth proportional to 69,101.40, 95,361.81 and 38,887.80 is: 53,666.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,101.40 : 95,361.81 = 38,887.80 : x
  2. Step 2: Convert to fraction form
    69,101.40/95,361.81 = 38,887.80/x
  3. Step 3: Cross multiply
    69,101.40x = 95,361.81 × 38,887.80
  4. Step 4: Simplify right side
    69,101.40x = 3,708,410,491.48
  5. Step 5: Solve for x
    x = 3,708,410,491.48/69,101.40
  6. Step 6: Final answer
    x = 53,666.21

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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.