Home / 55,181.09-82,772.40-15,738.20

Finding the Fourth Proportional to 55,181.09, 82,772.40 and 15,738.20

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Solution

The fourth proportional to 55,181.09, 82,772.40 and 15,738.20 is: 23,607.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,181.09 : 82,772.40 = 15,738.20 : x
  2. Step 2: Convert to fraction form
    55,181.09/82,772.40 = 15,738.20/x
  3. Step 3: Cross multiply
    55,181.09x = 82,772.40 × 15,738.20
  4. Step 4: Simplify right side
    55,181.09x = 1,302,688,171.82
  5. Step 5: Solve for x
    x = 1,302,688,171.82/55,181.09
  6. Step 6: Final answer
    x = 23,607.51

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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.