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Finding the Fourth Proportional to 73,408.20, 110,112.30 and 38,416.20

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Solution

The fourth proportional to 73,408.20, 110,112.30 and 38,416.20 is: 57,624.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,408.20 : 110,112.30 = 38,416.20 : x
  2. Step 2: Convert to fraction form
    73,408.20/110,112.30 = 38,416.20/x
  3. Step 3: Cross multiply
    73,408.20x = 110,112.30 × 38,416.20
  4. Step 4: Simplify right side
    73,408.20x = 4,230,096,139.26
  5. Step 5: Solve for x
    x = 4,230,096,139.26/73,408.20
  6. Step 6: Final answer
    x = 57,624.30

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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.