Home / 65,447.22-98,170.83-21,078.46

Finding the Fourth Proportional to 65,447.22, 98,170.83 and 21,078.46

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Solution

The fourth proportional to 65,447.22, 98,170.83 and 21,078.46 is: 31,617.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,447.22 : 98,170.83 = 21,078.46 : x
  2. Step 2: Convert to fraction form
    65,447.22/98,170.83 = 21,078.46/x
  3. Step 3: Cross multiply
    65,447.22x = 98,170.83 × 21,078.46
  4. Step 4: Simplify right side
    65,447.22x = 2,069,289,913.32
  5. Step 5: Solve for x
    x = 2,069,289,913.32/65,447.22
  6. Step 6: Final answer
    x = 31,617.69

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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.