Home / 43,136.67-64,704.63-11,971.92

Finding the Fourth Proportional to 43,136.67, 64,704.63 and 11,971.92

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Solution

The fourth proportional to 43,136.67, 64,704.63 and 11,971.92 is: 17,957.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,136.67 : 64,704.63 = 11,971.92 : x
  2. Step 2: Convert to fraction form
    43,136.67/64,704.63 = 11,971.92/x
  3. Step 3: Cross multiply
    43,136.67x = 64,704.63 × 11,971.92
  4. Step 4: Simplify right side
    43,136.67x = 774,638,653.99
  5. Step 5: Solve for x
    x = 774,638,653.99/43,136.67
  6. Step 6: Final answer
    x = 17,957.78

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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.