Home / 53,603.01-80,405.73-20,338.74

Finding the Fourth Proportional to 53,603.01, 80,405.73 and 20,338.74

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Solution

The fourth proportional to 53,603.01, 80,405.73 and 20,338.74 is: 30,508.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,603.01 : 80,405.73 = 20,338.74 : x
  2. Step 2: Convert to fraction form
    53,603.01/80,405.73 = 20,338.74/x
  3. Step 3: Cross multiply
    53,603.01x = 80,405.73 × 20,338.74
  4. Step 4: Simplify right side
    53,603.01x = 1,635,351,236.98
  5. Step 5: Solve for x
    x = 1,635,351,236.98/53,603.01
  6. Step 6: Final answer
    x = 30,508.57

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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.