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Finding the Fourth Proportional to 78,279, 108,025.02 and 44,745.72

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Solution

The fourth proportional to 78,279, 108,025.02 and 44,745.72 is: 61,749.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,279 : 108,025.02 = 44,745.72 : x
  2. Step 2: Convert to fraction form
    78,279/108,025.02 = 44,745.72/x
  3. Step 3: Cross multiply
    78,279x = 108,025.02 × 44,745.72
  4. Step 4: Simplify right side
    78,279x = 4,833,657,297.91
  5. Step 5: Solve for x
    x = 4,833,657,297.91/78,279
  6. Step 6: Final answer
    x = 61,749.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.