Home / 57,218.33-78,950.09-31,723.58

Finding the Fourth Proportional to 57,218.33, 78,950.09 and 31,723.58

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Solution

The fourth proportional to 57,218.33, 78,950.09 and 31,723.58 is: 43,772.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,218.33 : 78,950.09 = 31,723.58 : x
  2. Step 2: Convert to fraction form
    57,218.33/78,950.09 = 31,723.58/x
  3. Step 3: Cross multiply
    57,218.33x = 78,950.09 × 31,723.58
  4. Step 4: Simplify right side
    57,218.33x = 2,504,579,772.81
  5. Step 5: Solve for x
    x = 2,504,579,772.81/57,218.33
  6. Step 6: Final answer
    x = 43,772.33

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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.