Home / 51,712.56-77,564.52-20,539.44

Finding the Fourth Proportional to 51,712.56, 77,564.52 and 20,539.44

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Solution

The fourth proportional to 51,712.56, 77,564.52 and 20,539.44 is: 30,807.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,712.56 : 77,564.52 = 20,539.44 : x
  2. Step 2: Convert to fraction form
    51,712.56/77,564.52 = 20,539.44/x
  3. Step 3: Cross multiply
    51,712.56x = 77,564.52 × 20,539.44
  4. Step 4: Simplify right side
    51,712.56x = 1,593,131,804.67
  5. Step 5: Solve for x
    x = 1,593,131,804.67/51,712.56
  6. Step 6: Final answer
    x = 30,807.44

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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.