Home / 65,401.50-90,286.06-43,883.54

Finding the Fourth Proportional to 65,401.50, 90,286.06 and 43,883.54

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Solution

The fourth proportional to 65,401.50, 90,286.06 and 43,883.54 is: 60,580.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,401.50 : 90,286.06 = 43,883.54 : x
  2. Step 2: Convert to fraction form
    65,401.50/90,286.06 = 43,883.54/x
  3. Step 3: Cross multiply
    65,401.50x = 90,286.06 × 43,883.54
  4. Step 4: Simplify right side
    65,401.50x = 3,962,071,925.45
  5. Step 5: Solve for x
    x = 3,962,071,925.45/65,401.50
  6. Step 6: Final answer
    x = 60,580.75

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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.