Home / 65,408.96-90,263.21-36,728.85

Finding the Fourth Proportional to 65,408.96, 90,263.21 and 36,728.85

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Solution

The fourth proportional to 65,408.96, 90,263.21 and 36,728.85 is: 50,685.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,408.96 : 90,263.21 = 36,728.85 : x
  2. Step 2: Convert to fraction form
    65,408.96/90,263.21 = 36,728.85/x
  3. Step 3: Cross multiply
    65,408.96x = 90,263.21 × 36,728.85
  4. Step 4: Simplify right side
    65,408.96x = 3,315,263,900.61
  5. Step 5: Solve for x
    x = 3,315,263,900.61/65,408.96
  6. Step 6: Final answer
    x = 50,685.16

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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.