Home / 65,691.23-98,550.68-21,314.51

Finding the Fourth Proportional to 65,691.23, 98,550.68 and 21,314.51

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Solution

The fourth proportional to 65,691.23, 98,550.68 and 21,314.51 is: 31,976.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,691.23 : 98,550.68 = 21,314.51 : x
  2. Step 2: Convert to fraction form
    65,691.23/98,550.68 = 21,314.51/x
  3. Step 3: Cross multiply
    65,691.23x = 98,550.68 × 21,314.51
  4. Step 4: Simplify right side
    65,691.23x = 2,100,558,855.04
  5. Step 5: Solve for x
    x = 2,100,558,855.04/65,691.23
  6. Step 6: Final answer
    x = 31,976.25

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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.