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Finding the Fourth Proportional to 65,876.50, 98,814.99 and 15,956.50

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Solution

The fourth proportional to 65,876.50, 98,814.99 and 15,956.50 is: 23,934.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,876.50 : 98,814.99 = 15,956.50 : x
  2. Step 2: Convert to fraction form
    65,876.50/98,814.99 = 15,956.50/x
  3. Step 3: Cross multiply
    65,876.50x = 98,814.99 × 15,956.50
  4. Step 4: Simplify right side
    65,876.50x = 1,576,741,387.94
  5. Step 5: Solve for x
    x = 1,576,741,387.94/65,876.50
  6. Step 6: Final answer
    x = 23,934.81

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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.