Home / 54,168.58-74,772.74-40,778.67

Finding the Fourth Proportional to 54,168.58, 74,772.74 and 40,778.67

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Solution

The fourth proportional to 54,168.58, 74,772.74 and 40,778.67 is: 56,289.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,168.58 : 74,772.74 = 40,778.67 : x
  2. Step 2: Convert to fraction form
    54,168.58/74,772.74 = 40,778.67/x
  3. Step 3: Cross multiply
    54,168.58x = 74,772.74 × 40,778.67
  4. Step 4: Simplify right side
    54,168.58x = 3,049,133,076.39
  5. Step 5: Solve for x
    x = 3,049,133,076.39/54,168.58
  6. Step 6: Final answer
    x = 56,289.70

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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.