Home / 66,636.27-99,939.67-19,241.08

Finding the Fourth Proportional to 66,636.27, 99,939.67 and 19,241.08

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Solution

The fourth proportional to 66,636.27, 99,939.67 and 19,241.08 is: 28,857.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,636.27 : 99,939.67 = 19,241.08 : x
  2. Step 2: Convert to fraction form
    66,636.27/99,939.67 = 19,241.08/x
  3. Step 3: Cross multiply
    66,636.27x = 99,939.67 × 19,241.08
  4. Step 4: Simplify right side
    66,636.27x = 1,922,947,089.44
  5. Step 5: Solve for x
    x = 1,922,947,089.44/66,636.27
  6. Step 6: Final answer
    x = 28,857.36

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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.