Home / 57,878.23-86,844.36-20,466.64

Finding the Fourth Proportional to 57,878.23, 86,844.36 and 20,466.64

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Solution

The fourth proportional to 57,878.23, 86,844.36 and 20,466.64 is: 30,709.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,878.23 : 86,844.36 = 20,466.64 : x
  2. Step 2: Convert to fraction form
    57,878.23/86,844.36 = 20,466.64/x
  3. Step 3: Cross multiply
    57,878.23x = 86,844.36 × 20,466.64
  4. Step 4: Simplify right side
    57,878.23x = 1,777,412,252.15
  5. Step 5: Solve for x
    x = 1,777,412,252.15/57,878.23
  6. Step 6: Final answer
    x = 30,709.51

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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.