Home / 50,286.60-75,381.90-18,688.20

Finding the Fourth Proportional to 50,286.60, 75,381.90 and 18,688.20

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Solution

The fourth proportional to 50,286.60, 75,381.90 and 18,688.20 is: 28,014.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,286.60 : 75,381.90 = 18,688.20 : x
  2. Step 2: Convert to fraction form
    50,286.60/75,381.90 = 18,688.20/x
  3. Step 3: Cross multiply
    50,286.60x = 75,381.90 × 18,688.20
  4. Step 4: Simplify right side
    50,286.60x = 1,408,752,023.58
  5. Step 5: Solve for x
    x = 1,408,752,023.58/50,286.60
  6. Step 6: Final answer
    x = 28,014.46

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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.