Home / 65,474.39-98,205.21-21,132.97

Finding the Fourth Proportional to 65,474.39, 98,205.21 and 21,132.97

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Solution

The fourth proportional to 65,474.39, 98,205.21 and 21,132.97 is: 31,697.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,474.39 : 98,205.21 = 21,132.97 : x
  2. Step 2: Convert to fraction form
    65,474.39/98,205.21 = 21,132.97/x
  3. Step 3: Cross multiply
    65,474.39x = 98,205.21 × 21,132.97
  4. Step 4: Simplify right side
    65,474.39x = 2,075,367,511.26
  5. Step 5: Solve for x
    x = 2,075,367,511.26/65,474.39
  6. Step 6: Final answer
    x = 31,697.39

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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.