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Finding the Fourth Proportional to 75,604.30, 104,290.47 and 47,260.78

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Solution

The fourth proportional to 75,604.30, 104,290.47 and 47,260.78 is: 65,192.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,604.30 : 104,290.47 = 47,260.78 : x
  2. Step 2: Convert to fraction form
    75,604.30/104,290.47 = 47,260.78/x
  3. Step 3: Cross multiply
    75,604.30x = 104,290.47 × 47,260.78
  4. Step 4: Simplify right side
    75,604.30x = 4,928,848,958.77
  5. Step 5: Solve for x
    x = 4,928,848,958.77/75,604.30
  6. Step 6: Final answer
    x = 65,192.71

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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.