Home / 43,136.13-64,704.20-19,762.57

Finding the Fourth Proportional to 43,136.13, 64,704.20 and 19,762.57

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Solution

The fourth proportional to 43,136.13, 64,704.20 and 19,762.57 is: 29,643.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,136.13 : 64,704.20 = 19,762.57 : x
  2. Step 2: Convert to fraction form
    43,136.13/64,704.20 = 19,762.57/x
  3. Step 3: Cross multiply
    43,136.13x = 64,704.20 × 19,762.57
  4. Step 4: Simplify right side
    43,136.13x = 1,278,721,281.79
  5. Step 5: Solve for x
    x = 1,278,721,281.79/43,136.13
  6. Step 6: Final answer
    x = 29,643.86

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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.