Home / 45,292.74-67,913.19-18,975.30

Finding the Fourth Proportional to 45,292.74, 67,913.19 and 18,975.30

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Solution

The fourth proportional to 45,292.74, 67,913.19 and 18,975.30 is: 28,452.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,292.74 : 67,913.19 = 18,975.30 : x
  2. Step 2: Convert to fraction form
    45,292.74/67,913.19 = 18,975.30/x
  3. Step 3: Cross multiply
    45,292.74x = 67,913.19 × 18,975.30
  4. Step 4: Simplify right side
    45,292.74x = 1,288,673,154.21
  5. Step 5: Solve for x
    x = 1,288,673,154.21/45,292.74
  6. Step 6: Final answer
    x = 28,452.09

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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.