Home / 52,239.67-78,359.40-18,959.60

Finding the Fourth Proportional to 52,239.67, 78,359.40 and 18,959.60

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Solution

The fourth proportional to 52,239.67, 78,359.40 and 18,959.60 is: 28,439.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,239.67 : 78,359.40 = 18,959.60 : x
  2. Step 2: Convert to fraction form
    52,239.67/78,359.40 = 18,959.60/x
  3. Step 3: Cross multiply
    52,239.67x = 78,359.40 × 18,959.60
  4. Step 4: Simplify right side
    52,239.67x = 1,485,663,076.14
  5. Step 5: Solve for x
    x = 1,485,663,076.14/52,239.67
  6. Step 6: Final answer
    x = 28,439.37

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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.