Home / 46,121.91-69,181.64-12,840.63

Finding the Fourth Proportional to 46,121.91, 69,181.64 and 12,840.63

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Solution

The fourth proportional to 46,121.91, 69,181.64 and 12,840.63 is: 19,260.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,121.91 : 69,181.64 = 12,840.63 : x
  2. Step 2: Convert to fraction form
    46,121.91/69,181.64 = 12,840.63/x
  3. Step 3: Cross multiply
    46,121.91x = 69,181.64 × 12,840.63
  4. Step 4: Simplify right side
    46,121.91x = 888,335,638.78
  5. Step 5: Solve for x
    x = 888,335,638.78/46,121.91
  6. Step 6: Final answer
    x = 19,260.60

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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.