Home / 66,537.35-99,822.39-19,790.22

Finding the Fourth Proportional to 66,537.35, 99,822.39 and 19,790.22

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Solution

The fourth proportional to 66,537.35, 99,822.39 and 19,790.22 is: 29,690.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,537.35 : 99,822.39 = 19,790.22 : x
  2. Step 2: Convert to fraction form
    66,537.35/99,822.39 = 19,790.22/x
  3. Step 3: Cross multiply
    66,537.35x = 99,822.39 × 19,790.22
  4. Step 4: Simplify right side
    66,537.35x = 1,975,507,059.03
  5. Step 5: Solve for x
    x = 1,975,507,059.03/66,537.35
  6. Step 6: Final answer
    x = 29,690.20

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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.