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Finding the Fourth Proportional to 75,400.94, 104,045.32 and 43,579.94

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Solution

The fourth proportional to 75,400.94, 104,045.32 and 43,579.94 is: 60,135.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,400.94 : 104,045.32 = 43,579.94 : x
  2. Step 2: Convert to fraction form
    75,400.94/104,045.32 = 43,579.94/x
  3. Step 3: Cross multiply
    75,400.94x = 104,045.32 × 43,579.94
  4. Step 4: Simplify right side
    75,400.94x = 4,534,288,173.70
  5. Step 5: Solve for x
    x = 4,534,288,173.70/75,400.94
  6. Step 6: Final answer
    x = 60,135.70

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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.