Home / 78,265.26-117,407.25-27,653.81

Finding the Fourth Proportional to 78,265.26, 117,407.25 and 27,653.81

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Solution

The fourth proportional to 78,265.26, 117,407.25 and 27,653.81 is: 41,484.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,265.26 : 117,407.25 = 27,653.81 : x
  2. Step 2: Convert to fraction form
    78,265.26/117,407.25 = 27,653.81/x
  3. Step 3: Cross multiply
    78,265.26x = 117,407.25 × 27,653.81
  4. Step 4: Simplify right side
    78,265.26x = 3,246,757,753.80
  5. Step 5: Solve for x
    x = 3,246,757,753.80/78,265.26
  6. Step 6: Final answer
    x = 41,484.02

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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.