Home / 78,035.54-117,052.49-40,576.28

Finding the Fourth Proportional to 78,035.54, 117,052.49 and 40,576.28

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Solution

The fourth proportional to 78,035.54, 117,052.49 and 40,576.28 is: 60,863.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,035.54 : 117,052.49 = 40,576.28 : x
  2. Step 2: Convert to fraction form
    78,035.54/117,052.49 = 40,576.28/x
  3. Step 3: Cross multiply
    78,035.54x = 117,052.49 × 40,576.28
  4. Step 4: Simplify right side
    78,035.54x = 4,749,554,125.12
  5. Step 5: Solve for x
    x = 4,749,554,125.12/78,035.54
  6. Step 6: Final answer
    x = 60,863.99

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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.