Home / 66,188.21-99,282.16-28,743.42

Finding the Fourth Proportional to 66,188.21, 99,282.16 and 28,743.42

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Solution

The fourth proportional to 66,188.21, 99,282.16 and 28,743.42 is: 43,115.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,188.21 : 99,282.16 = 28,743.42 : x
  2. Step 2: Convert to fraction form
    66,188.21/99,282.16 = 28,743.42/x
  3. Step 3: Cross multiply
    66,188.21x = 99,282.16 × 28,743.42
  4. Step 4: Simplify right side
    66,188.21x = 2,853,709,069.94
  5. Step 5: Solve for x
    x = 2,853,709,069.94/66,188.21
  6. Step 6: Final answer
    x = 43,115.07

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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.