Home / 52,782.36-79,172.74-21,200.52

Finding the Fourth Proportional to 52,782.36, 79,172.74 and 21,200.52

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Solution

The fourth proportional to 52,782.36, 79,172.74 and 21,200.52 is: 31,800.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,782.36 : 79,172.74 = 21,200.52 : x
  2. Step 2: Convert to fraction form
    52,782.36/79,172.74 = 21,200.52/x
  3. Step 3: Cross multiply
    52,782.36x = 79,172.74 × 21,200.52
  4. Step 4: Simplify right side
    52,782.36x = 1,678,503,257.82
  5. Step 5: Solve for x
    x = 1,678,503,257.82/52,782.36
  6. Step 6: Final answer
    x = 31,800.46

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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.