Home / 57,575.10-86,356.98-20,128.26

Finding the Fourth Proportional to 57,575.10, 86,356.98 and 20,128.26

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Solution

The fourth proportional to 57,575.10, 86,356.98 and 20,128.26 is: 30,190.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,575.10 : 86,356.98 = 20,128.26 : x
  2. Step 2: Convert to fraction form
    57,575.10/86,356.98 = 20,128.26/x
  3. Step 3: Cross multiply
    57,575.10x = 86,356.98 × 20,128.26
  4. Step 4: Simplify right side
    57,575.10x = 1,738,215,746.25
  5. Step 5: Solve for x
    x = 1,738,215,746.25/57,575.10
  6. Step 6: Final answer
    x = 30,190.41

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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.