Home / 61,144.21-91,722.60-21,163.12

Finding the Fourth Proportional to 61,144.21, 91,722.60 and 21,163.12

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Solution

The fourth proportional to 61,144.21, 91,722.60 and 21,163.12 is: 31,746.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,144.21 : 91,722.60 = 21,163.12 : x
  2. Step 2: Convert to fraction form
    61,144.21/91,722.60 = 21,163.12/x
  3. Step 3: Cross multiply
    61,144.21x = 91,722.60 × 21,163.12
  4. Step 4: Simplify right side
    61,144.21x = 1,941,136,390.51
  5. Step 5: Solve for x
    x = 1,941,136,390.51/61,144.21
  6. Step 6: Final answer
    x = 31,746.86

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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.