Home / 45,143.82-67,727.25-28,621.26

Finding the Fourth Proportional to 45,143.82, 67,727.25 and 28,621.26

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Solution

The fourth proportional to 45,143.82, 67,727.25 and 28,621.26 is: 42,939.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,143.82 : 67,727.25 = 28,621.26 : x
  2. Step 2: Convert to fraction form
    45,143.82/67,727.25 = 28,621.26/x
  3. Step 3: Cross multiply
    45,143.82x = 67,727.25 × 28,621.26
  4. Step 4: Simplify right side
    45,143.82x = 1,938,439,231.34
  5. Step 5: Solve for x
    x = 1,938,439,231.34/45,143.82
  6. Step 6: Final answer
    x = 42,939.19

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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.