Home / 66,171.38-99,257.08-19,424.26

Finding the Fourth Proportional to 66,171.38, 99,257.08 and 19,424.26

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Solution

The fourth proportional to 66,171.38, 99,257.08 and 19,424.26 is: 29,136.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,171.38 : 99,257.08 = 19,424.26 : x
  2. Step 2: Convert to fraction form
    66,171.38/99,257.08 = 19,424.26/x
  3. Step 3: Cross multiply
    66,171.38x = 99,257.08 × 19,424.26
  4. Step 4: Simplify right side
    66,171.38x = 1,927,995,328.76
  5. Step 5: Solve for x
    x = 1,927,995,328.76/66,171.38
  6. Step 6: Final answer
    x = 29,136.39

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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.