Home / 40,121.24-55,308.29-30,544.41

Finding the Fourth Proportional to 40,121.24, 55,308.29 and 30,544.41

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Solution

The fourth proportional to 40,121.24, 55,308.29 and 30,544.41 is: 42,106.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,121.24 : 55,308.29 = 30,544.41 : x
  2. Step 2: Convert to fraction form
    40,121.24/55,308.29 = 30,544.41/x
  3. Step 3: Cross multiply
    40,121.24x = 55,308.29 × 30,544.41
  4. Step 4: Simplify right side
    40,121.24x = 1,689,358,933.44
  5. Step 5: Solve for x
    x = 1,689,358,933.44/40,121.24
  6. Step 6: Final answer
    x = 42,106.35

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1.5x scale

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.