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Finding the Fourth Proportional to 65,706.39, 98,629.73 and 28,284.99

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Solution

The fourth proportional to 65,706.39, 98,629.73 and 28,284.99 is: 42,457.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,706.39 : 98,629.73 = 28,284.99 : x
  2. Step 2: Convert to fraction form
    65,706.39/98,629.73 = 28,284.99/x
  3. Step 3: Cross multiply
    65,706.39x = 98,629.73 × 28,284.99
  4. Step 4: Simplify right side
    65,706.39x = 2,789,740,785.33
  5. Step 5: Solve for x
    x = 2,789,740,785.33/65,706.39
  6. Step 6: Final answer
    x = 42,457.68

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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.