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Finding the Fourth Proportional to 65,799.82, 98,714.34 and 30,720.34

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Solution

The fourth proportional to 65,799.82, 98,714.34 and 30,720.34 is: 46,087.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,799.82 : 98,714.34 = 30,720.34 : x
  2. Step 2: Convert to fraction form
    65,799.82/98,714.34 = 30,720.34/x
  3. Step 3: Cross multiply
    65,799.82x = 98,714.34 × 30,720.34
  4. Step 4: Simplify right side
    65,799.82x = 3,032,538,087.68
  5. Step 5: Solve for x
    x = 3,032,538,087.68/65,799.82
  6. Step 6: Final answer
    x = 46,087.33

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1.5x scale

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.