Home / 65,890.82-98,836.43-15,970.72

Finding the Fourth Proportional to 65,890.82, 98,836.43 and 15,970.72

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Solution

The fourth proportional to 65,890.82, 98,836.43 and 15,970.72 is: 23,956.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,890.82 : 98,836.43 = 15,970.72 : x
  2. Step 2: Convert to fraction form
    65,890.82/98,836.43 = 15,970.72/x
  3. Step 3: Cross multiply
    65,890.82x = 98,836.43 × 15,970.72
  4. Step 4: Simplify right side
    65,890.82x = 1,578,488,949.33
  5. Step 5: Solve for x
    x = 1,578,488,949.33/65,890.82
  6. Step 6: Final answer
    x = 23,956.13

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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.