Home / 55,378.40-83,067.60-40,506.80

Finding the Fourth Proportional to 55,378.40, 83,067.60 and 40,506.80

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Solution

The fourth proportional to 55,378.40, 83,067.60 and 40,506.80 is: 60,760.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,378.40 : 83,067.60 = 40,506.80 : x
  2. Step 2: Convert to fraction form
    55,378.40/83,067.60 = 40,506.80/x
  3. Step 3: Cross multiply
    55,378.40x = 83,067.60 × 40,506.80
  4. Step 4: Simplify right side
    55,378.40x = 3,364,802,659.68
  5. Step 5: Solve for x
    x = 3,364,802,659.68/55,378.40
  6. Step 6: Final answer
    x = 60,760.20

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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.