Home / 78,025.18-116,967.92-28,093.54

Finding the Fourth Proportional to 78,025.18, 116,967.92 and 28,093.54

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Solution

The fourth proportional to 78,025.18, 116,967.92 and 28,093.54 is: 42,115.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,025.18 : 116,967.92 = 28,093.54 : x
  2. Step 2: Convert to fraction form
    78,025.18/116,967.92 = 28,093.54/x
  3. Step 3: Cross multiply
    78,025.18x = 116,967.92 × 28,093.54
  4. Step 4: Simplify right side
    78,025.18x = 3,286,042,939.24
  5. Step 5: Solve for x
    x = 3,286,042,939.24/78,025.18
  6. Step 6: Final answer
    x = 42,115.16

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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.