Home / 40,165.86-55,436.74-25,620.68

Finding the Fourth Proportional to 40,165.86, 55,436.74 and 25,620.68

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Solution

The fourth proportional to 40,165.86, 55,436.74 and 25,620.68 is: 35,361.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,165.86 : 55,436.74 = 25,620.68 : x
  2. Step 2: Convert to fraction form
    40,165.86/55,436.74 = 25,620.68/x
  3. Step 3: Cross multiply
    40,165.86x = 55,436.74 × 25,620.68
  4. Step 4: Simplify right side
    40,165.86x = 1,420,326,975.78
  5. Step 5: Solve for x
    x = 1,420,326,975.78/40,165.86
  6. Step 6: Final answer
    x = 35,361.55

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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.