Home / 78,272.54-117,312.62-36,094.08

Finding the Fourth Proportional to 78,272.54, 117,312.62 and 36,094.08

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Solution

The fourth proportional to 78,272.54, 117,312.62 and 36,094.08 is: 54,096.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,272.54 : 117,312.62 = 36,094.08 : x
  2. Step 2: Convert to fraction form
    78,272.54/117,312.62 = 36,094.08/x
  3. Step 3: Cross multiply
    78,272.54x = 117,312.62 × 36,094.08
  4. Step 4: Simplify right side
    78,272.54x = 4,234,291,071.56
  5. Step 5: Solve for x
    x = 4,234,291,071.56/78,272.54
  6. Step 6: Final answer
    x = 54,096.76

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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.