Home / 90,940.80-136,452.48-40,993.92

Finding the Fourth Proportional to 90,940.80, 136,452.48 and 40,993.92

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Solution

The fourth proportional to 90,940.80, 136,452.48 and 40,993.92 is: 61,509.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,940.80 : 136,452.48 = 40,993.92 : x
  2. Step 2: Convert to fraction form
    90,940.80/136,452.48 = 40,993.92/x
  3. Step 3: Cross multiply
    90,940.80x = 136,452.48 × 40,993.92
  4. Step 4: Simplify right side
    90,940.80x = 5,593,722,048.92
  5. Step 5: Solve for x
    x = 5,593,722,048.92/90,940.80
  6. Step 6: Final answer
    x = 61,509.49

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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.