Home / 65,236.39-90,190.74-48,213.78

Finding the Fourth Proportional to 65,236.39, 90,190.74 and 48,213.78

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Solution

The fourth proportional to 65,236.39, 90,190.74 and 48,213.78 is: 66,656.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,236.39 : 90,190.74 = 48,213.78 : x
  2. Step 2: Convert to fraction form
    65,236.39/90,190.74 = 48,213.78/x
  3. Step 3: Cross multiply
    65,236.39x = 90,190.74 × 48,213.78
  4. Step 4: Simplify right side
    65,236.39x = 4,348,436,710.71
  5. Step 5: Solve for x
    x = 4,348,436,710.71/65,236.39
  6. Step 6: Final answer
    x = 66,656.61

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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.