Home / 54,785.94-75,613.88-31,812.20

Finding the Fourth Proportional to 54,785.94, 75,613.88 and 31,812.20

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Solution

The fourth proportional to 54,785.94, 75,613.88 and 31,812.20 is: 43,906.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,785.94 : 75,613.88 = 31,812.20 : x
  2. Step 2: Convert to fraction form
    54,785.94/75,613.88 = 31,812.20/x
  3. Step 3: Cross multiply
    54,785.94x = 75,613.88 × 31,812.20
  4. Step 4: Simplify right side
    54,785.94x = 2,405,443,873.34
  5. Step 5: Solve for x
    x = 2,405,443,873.34/54,785.94
  6. Step 6: Final answer
    x = 43,906.23

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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.