Home / 66,168.38-99,252.57-19,421.25

Finding the Fourth Proportional to 66,168.38, 99,252.57 and 19,421.25

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Solution

The fourth proportional to 66,168.38, 99,252.57 and 19,421.25 is: 29,131.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,168.38 : 99,252.57 = 19,421.25 : x
  2. Step 2: Convert to fraction form
    66,168.38/99,252.57 = 19,421.25/x
  3. Step 3: Cross multiply
    66,168.38x = 99,252.57 × 19,421.25
  4. Step 4: Simplify right side
    66,168.38x = 1,927,608,975.11
  5. Step 5: Solve for x
    x = 1,927,608,975.11/66,168.38
  6. Step 6: Final answer
    x = 29,131.88

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1.5x scale

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.