Home / 66,509.45-99,765.09-22,136.36

Finding the Fourth Proportional to 66,509.45, 99,765.09 and 22,136.36

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Solution

The fourth proportional to 66,509.45, 99,765.09 and 22,136.36 is: 33,204.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,509.45 : 99,765.09 = 22,136.36 : x
  2. Step 2: Convert to fraction form
    66,509.45/99,765.09 = 22,136.36/x
  3. Step 3: Cross multiply
    66,509.45x = 99,765.09 × 22,136.36
  4. Step 4: Simplify right side
    66,509.45x = 2,208,435,338.17
  5. Step 5: Solve for x
    x = 2,208,435,338.17/66,509.45
  6. Step 6: Final answer
    x = 33,204.84

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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.