Home / 58,621.72-87,940.80-19,181.96

Finding the Fourth Proportional to 58,621.72, 87,940.80 and 19,181.96

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Solution

The fourth proportional to 58,621.72, 87,940.80 and 19,181.96 is: 28,775.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,621.72 : 87,940.80 = 19,181.96 : x
  2. Step 2: Convert to fraction form
    58,621.72/87,940.80 = 19,181.96/x
  3. Step 3: Cross multiply
    58,621.72x = 87,940.80 × 19,181.96
  4. Step 4: Simplify right side
    58,621.72x = 1,686,876,907.97
  5. Step 5: Solve for x
    x = 1,686,876,907.97/58,621.72
  6. Step 6: Final answer
    x = 28,775.63

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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.