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Finding the Fourth Proportional to 74,100.75, 102,249.50 and 42,267.75

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Solution

The fourth proportional to 74,100.75, 102,249.50 and 42,267.75 is: 58,324.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,100.75 : 102,249.50 = 42,267.75 : x
  2. Step 2: Convert to fraction form
    74,100.75/102,249.50 = 42,267.75/x
  3. Step 3: Cross multiply
    74,100.75x = 102,249.50 × 42,267.75
  4. Step 4: Simplify right side
    74,100.75x = 4,321,856,303.63
  5. Step 5: Solve for x
    x = 4,321,856,303.63/74,100.75
  6. Step 6: Final answer
    x = 58,324.06

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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.