Home / 65,836.40-98,764.34-19,083.20

Finding the Fourth Proportional to 65,836.40, 98,764.34 and 19,083.20

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Solution

The fourth proportional to 65,836.40, 98,764.34 and 19,083.20 is: 28,627.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,836.40 : 98,764.34 = 19,083.20 : x
  2. Step 2: Convert to fraction form
    65,836.40/98,764.34 = 19,083.20/x
  3. Step 3: Cross multiply
    65,836.40x = 98,764.34 × 19,083.20
  4. Step 4: Simplify right side
    65,836.40x = 1,884,739,063.85
  5. Step 5: Solve for x
    x = 1,884,739,063.85/65,836.40
  6. Step 6: Final answer
    x = 28,627.62

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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.