Home / 57,139.63-85,764.73-27,578.28

Finding the Fourth Proportional to 57,139.63, 85,764.73 and 27,578.28

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Solution

The fourth proportional to 57,139.63, 85,764.73 and 27,578.28 is: 41,394.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,139.63 : 85,764.73 = 27,578.28 : x
  2. Step 2: Convert to fraction form
    57,139.63/85,764.73 = 27,578.28/x
  3. Step 3: Cross multiply
    57,139.63x = 85,764.73 × 27,578.28
  4. Step 4: Simplify right side
    57,139.63x = 2,365,243,738.06
  5. Step 5: Solve for x
    x = 2,365,243,738.06/57,139.63
  6. Step 6: Final answer
    x = 41,394.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.