Home / 45,136.89-67,661.15-18,849.15

Finding the Fourth Proportional to 45,136.89, 67,661.15 and 18,849.15

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Solution

The fourth proportional to 45,136.89, 67,661.15 and 18,849.15 is: 28,255.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,136.89 : 67,661.15 = 18,849.15 : x
  2. Step 2: Convert to fraction form
    45,136.89/67,661.15 = 18,849.15/x
  3. Step 3: Cross multiply
    45,136.89x = 67,661.15 × 18,849.15
  4. Step 4: Simplify right side
    45,136.89x = 1,275,355,071.28
  5. Step 5: Solve for x
    x = 1,275,355,071.28/45,136.89
  6. Step 6: Final answer
    x = 28,255.27

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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.