Home / 51,238.90-76,855.47-19,664.02

Finding the Fourth Proportional to 51,238.90, 76,855.47 and 19,664.02

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Solution

The fourth proportional to 51,238.90, 76,855.47 and 19,664.02 is: 29,494.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,238.90 : 76,855.47 = 19,664.02 : x
  2. Step 2: Convert to fraction form
    51,238.90/76,855.47 = 19,664.02/x
  3. Step 3: Cross multiply
    51,238.90x = 76,855.47 × 19,664.02
  4. Step 4: Simplify right side
    51,238.90x = 1,511,287,499.19
  5. Step 5: Solve for x
    x = 1,511,287,499.19/51,238.90
  6. Step 6: Final answer
    x = 29,494.92

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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.