Home / 40,078.61-55,561.41-37,945.60

Finding the Fourth Proportional to 40,078.61, 55,561.41 and 37,945.60

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Solution

The fourth proportional to 40,078.61, 55,561.41 and 37,945.60 is: 52,604.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,078.61 : 55,561.41 = 37,945.60 : x
  2. Step 2: Convert to fraction form
    40,078.61/55,561.41 = 37,945.60/x
  3. Step 3: Cross multiply
    40,078.61x = 55,561.41 × 37,945.60
  4. Step 4: Simplify right side
    40,078.61x = 2,108,311,039.30
  5. Step 5: Solve for x
    x = 2,108,311,039.30/40,078.61
  6. Step 6: Final answer
    x = 52,604.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.