Home / 90,851.37-136,286.12-34,738.66

Finding the Fourth Proportional to 90,851.37, 136,286.12 and 34,738.66

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Solution

The fourth proportional to 90,851.37, 136,286.12 and 34,738.66 is: 52,111.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,851.37 : 136,286.12 = 34,738.66 : x
  2. Step 2: Convert to fraction form
    90,851.37/136,286.12 = 34,738.66/x
  3. Step 3: Cross multiply
    90,851.37x = 136,286.12 × 34,738.66
  4. Step 4: Simplify right side
    90,851.37x = 4,734,397,185.40
  5. Step 5: Solve for x
    x = 4,734,397,185.40/90,851.37
  6. Step 6: Final answer
    x = 52,111.46

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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.