Home / 50,115.06-75,106.98-20,498.22

Finding the Fourth Proportional to 50,115.06, 75,106.98 and 20,498.22

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Solution

The fourth proportional to 50,115.06, 75,106.98 and 20,498.22 is: 30,720.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,115.06 : 75,106.98 = 20,498.22 : x
  2. Step 2: Convert to fraction form
    50,115.06/75,106.98 = 20,498.22/x
  3. Step 3: Cross multiply
    50,115.06x = 75,106.98 × 20,498.22
  4. Step 4: Simplify right side
    50,115.06x = 1,539,559,399.58
  5. Step 5: Solve for x
    x = 1,539,559,399.58/50,115.06
  6. Step 6: Final answer
    x = 30,720.49

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Double scale
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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.