Home / 51,480.54-77,221.57-20,315.50

Finding the Fourth Proportional to 51,480.54, 77,221.57 and 20,315.50

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Solution

The fourth proportional to 51,480.54, 77,221.57 and 20,315.50 is: 30,473.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,480.54 : 77,221.57 = 20,315.50 : x
  2. Step 2: Convert to fraction form
    51,480.54/77,221.57 = 20,315.50/x
  3. Step 3: Cross multiply
    51,480.54x = 77,221.57 × 20,315.50
  4. Step 4: Simplify right side
    51,480.54x = 1,568,794,805.34
  5. Step 5: Solve for x
    x = 1,568,794,805.34/51,480.54
  6. Step 6: Final answer
    x = 30,473.55

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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.