Home / 45,297.33-67,876.71-18,987.72

Finding the Fourth Proportional to 45,297.33, 67,876.71 and 18,987.72

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Solution

The fourth proportional to 45,297.33, 67,876.71 and 18,987.72 is: 28,452.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,297.33 : 67,876.71 = 18,987.72 : x
  2. Step 2: Convert to fraction form
    45,297.33/67,876.71 = 18,987.72/x
  3. Step 3: Cross multiply
    45,297.33x = 67,876.71 × 18,987.72
  4. Step 4: Simplify right side
    45,297.33x = 1,288,823,624.62
  5. Step 5: Solve for x
    x = 1,288,823,624.62/45,297.33
  6. Step 6: Final answer
    x = 28,452.53

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1.5x scale

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.