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Finding the Fourth Proportional to 50,765.81, 70,064.93 and 30,625.63

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Solution

The fourth proportional to 50,765.81, 70,064.93 and 30,625.63 is: 42,268.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,765.81 : 70,064.93 = 30,625.63 : x
  2. Step 2: Convert to fraction form
    50,765.81/70,064.93 = 30,625.63/x
  3. Step 3: Cross multiply
    50,765.81x = 70,064.93 × 30,625.63
  4. Step 4: Simplify right side
    50,765.81x = 2,145,782,523.56
  5. Step 5: Solve for x
    x = 2,145,782,523.56/50,765.81
  6. Step 6: Final answer
    x = 42,268.27

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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.