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Finding the Fourth Proportional to 65,495.71, 98,161.35 and 28,011.70

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Solution

The fourth proportional to 65,495.71, 98,161.35 and 28,011.70 is: 41,982.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,495.71 : 98,161.35 = 28,011.70 : x
  2. Step 2: Convert to fraction form
    65,495.71/98,161.35 = 28,011.70/x
  3. Step 3: Cross multiply
    65,495.71x = 98,161.35 × 28,011.70
  4. Step 4: Simplify right side
    65,495.71x = 2,749,666,287.80
  5. Step 5: Solve for x
    x = 2,749,666,287.80/65,495.71
  6. Step 6: Final answer
    x = 41,982.39

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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.