Home / 49,779.36-74,670.48-12,843.36

Finding the Fourth Proportional to 49,779.36, 74,670.48 and 12,843.36

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Solution

The fourth proportional to 49,779.36, 74,670.48 and 12,843.36 is: 19,265.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,779.36 : 74,670.48 = 12,843.36 : x
  2. Step 2: Convert to fraction form
    49,779.36/74,670.48 = 12,843.36/x
  3. Step 3: Cross multiply
    49,779.36x = 74,670.48 × 12,843.36
  4. Step 4: Simplify right side
    49,779.36x = 959,019,856.01
  5. Step 5: Solve for x
    x = 959,019,856.01/49,779.36
  6. Step 6: Final answer
    x = 19,265.41

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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.