Home / 66,099.49-99,128.21-21,716.00

Finding the Fourth Proportional to 66,099.49, 99,128.21 and 21,716.00

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Solution

The fourth proportional to 66,099.49, 99,128.21 and 21,716.00 is: 32,567.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,099.49 : 99,128.21 = 21,716.00 : x
  2. Step 2: Convert to fraction form
    66,099.49/99,128.21 = 21,716.00/x
  3. Step 3: Cross multiply
    66,099.49x = 99,128.21 × 21,716.00
  4. Step 4: Simplify right side
    66,099.49x = 2,152,667,975.87
  5. Step 5: Solve for x
    x = 2,152,667,975.87/66,099.49
  6. Step 6: Final answer
    x = 32,567.09

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.