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Finding the Fourth Proportional to 75,028.56, 112,558.03 and 30,658.89

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Solution

The fourth proportional to 75,028.56, 112,558.03 and 30,658.89 is: 45,994.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,028.56 : 112,558.03 = 30,658.89 : x
  2. Step 2: Convert to fraction form
    75,028.56/112,558.03 = 30,658.89/x
  3. Step 3: Cross multiply
    75,028.56x = 112,558.03 × 30,658.89
  4. Step 4: Simplify right side
    75,028.56x = 3,450,903,544.30
  5. Step 5: Solve for x
    x = 3,450,903,544.30/75,028.56
  6. Step 6: Final answer
    x = 45,994.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.