Home / 75,145.02-103,708.25-47,922

Finding the Fourth Proportional to 75,145.02, 103,708.25 and 47,922

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Solution

The fourth proportional to 75,145.02, 103,708.25 and 47,922 is: 66,137.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,145.02 : 103,708.25 = 47,922 : x
  2. Step 2: Convert to fraction form
    75,145.02/103,708.25 = 47,922/x
  3. Step 3: Cross multiply
    75,145.02x = 103,708.25 × 47,922
  4. Step 4: Simplify right side
    75,145.02x = 4,969,906,756.50
  5. Step 5: Solve for x
    x = 4,969,906,756.50/75,145.02
  6. Step 6: Final answer
    x = 66,137.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.