Home / 66,578.72-99,840.36-27,109.04

Finding the Fourth Proportional to 66,578.72, 99,840.36 and 27,109.04

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Solution

The fourth proportional to 66,578.72, 99,840.36 and 27,109.04 is: 40,652.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,578.72 : 99,840.36 = 27,109.04 : x
  2. Step 2: Convert to fraction form
    66,578.72/99,840.36 = 27,109.04/x
  3. Step 3: Cross multiply
    66,578.72x = 99,840.36 × 27,109.04
  4. Step 4: Simplify right side
    66,578.72x = 2,706,576,312.85
  5. Step 5: Solve for x
    x = 2,706,576,312.85/66,578.72
  6. Step 6: Final answer
    x = 40,652.27

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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.