Home / 54,168.45-74,750.24-31,508.09

Finding the Fourth Proportional to 54,168.45, 74,750.24 and 31,508.09

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Solution

The fourth proportional to 54,168.45, 74,750.24 and 31,508.09 is: 43,479.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,168.45 : 74,750.24 = 31,508.09 : x
  2. Step 2: Convert to fraction form
    54,168.45/74,750.24 = 31,508.09/x
  3. Step 3: Cross multiply
    54,168.45x = 74,750.24 × 31,508.09
  4. Step 4: Simplify right side
    54,168.45x = 2,355,237,289.44
  5. Step 5: Solve for x
    x = 2,355,237,289.44/54,168.45
  6. Step 6: Final answer
    x = 43,479.87

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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.