Home / 57,128.36-85,713.08-25,535.79

Finding the Fourth Proportional to 57,128.36, 85,713.08 and 25,535.79

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Solution

The fourth proportional to 57,128.36, 85,713.08 and 25,535.79 is: 38,312.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,128.36 : 85,713.08 = 25,535.79 : x
  2. Step 2: Convert to fraction form
    57,128.36/85,713.08 = 25,535.79/x
  3. Step 3: Cross multiply
    57,128.36x = 85,713.08 × 25,535.79
  4. Step 4: Simplify right side
    57,128.36x = 2,188,751,083.45
  5. Step 5: Solve for x
    x = 2,188,751,083.45/57,128.36
  6. Step 6: Final answer
    x = 38,312.87

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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.