Home / 65,819.47-98,739.45-21,435.90

Finding the Fourth Proportional to 65,819.47, 98,739.45 and 21,435.90

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Solution

The fourth proportional to 65,819.47, 98,739.45 and 21,435.90 is: 32,157.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,819.47 : 98,739.45 = 21,435.90 : x
  2. Step 2: Convert to fraction form
    65,819.47/98,739.45 = 21,435.90/x
  3. Step 3: Cross multiply
    65,819.47x = 98,739.45 × 21,435.90
  4. Step 4: Simplify right side
    65,819.47x = 2,116,568,605.98
  5. Step 5: Solve for x
    x = 2,116,568,605.98/65,819.47
  6. Step 6: Final answer
    x = 32,157.18

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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.