Home / 65,679.19-98,509.54-21,306.33

Finding the Fourth Proportional to 65,679.19, 98,509.54 and 21,306.33

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Solution

The fourth proportional to 65,679.19, 98,509.54 and 21,306.33 is: 31,956.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,679.19 : 98,509.54 = 21,306.33 : x
  2. Step 2: Convert to fraction form
    65,679.19/98,509.54 = 21,306.33/x
  3. Step 3: Cross multiply
    65,679.19x = 98,509.54 × 21,306.33
  4. Step 4: Simplify right side
    65,679.19x = 2,098,876,767.39
  5. Step 5: Solve for x
    x = 2,098,876,767.39/65,679.19
  6. Step 6: Final answer
    x = 31,956.50

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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.