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Finding the Fourth Proportional to 76,279.44, 114,935.34 and 63,418.80

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Solution

The fourth proportional to 76,279.44, 114,935.34 and 63,418.80 is: 95,557.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,279.44 : 114,935.34 = 63,418.80 : x
  2. Step 2: Convert to fraction form
    76,279.44/114,935.34 = 63,418.80/x
  3. Step 3: Cross multiply
    76,279.44x = 114,935.34 × 63,418.80
  4. Step 4: Simplify right side
    76,279.44x = 7,289,061,340.39
  5. Step 5: Solve for x
    x = 7,289,061,340.39/76,279.44
  6. Step 6: Final answer
    x = 95,557.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.