Home / 90,735.76-136,131.32-46,393.64

Finding the Fourth Proportional to 90,735.76, 136,131.32 and 46,393.64

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Solution

The fourth proportional to 90,735.76, 136,131.32 and 46,393.64 is: 69,604.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,735.76 : 136,131.32 = 46,393.64 : x
  2. Step 2: Convert to fraction form
    90,735.76/136,131.32 = 46,393.64/x
  3. Step 3: Cross multiply
    90,735.76x = 136,131.32 × 46,393.64
  4. Step 4: Simplify right side
    90,735.76x = 6,315,627,452.80
  5. Step 5: Solve for x
    x = 6,315,627,452.80/90,735.76
  6. Step 6: Final answer
    x = 69,604.61

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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.