Home / 65,680.22-98,534.73-21,311.45

Finding the Fourth Proportional to 65,680.22, 98,534.73 and 21,311.45

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Solution

The fourth proportional to 65,680.22, 98,534.73 and 21,311.45 is: 31,971.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,680.22 : 98,534.73 = 21,311.45 : x
  2. Step 2: Convert to fraction form
    65,680.22/98,534.73 = 21,311.45/x
  3. Step 3: Cross multiply
    65,680.22x = 98,534.73 × 21,311.45
  4. Step 4: Simplify right side
    65,680.22x = 2,099,917,478.98
  5. Step 5: Solve for x
    x = 2,099,917,478.98/65,680.22
  6. Step 6: Final answer
    x = 31,971.84

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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.