Home / 65,917.85-90,941.54-48,731.49

Finding the Fourth Proportional to 65,917.85, 90,941.54 and 48,731.49

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Solution

The fourth proportional to 65,917.85, 90,941.54 and 48,731.49 is: 67,230.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,917.85 : 90,941.54 = 48,731.49 : x
  2. Step 2: Convert to fraction form
    65,917.85/90,941.54 = 48,731.49/x
  3. Step 3: Cross multiply
    65,917.85x = 90,941.54 × 48,731.49
  4. Step 4: Simplify right side
    65,917.85x = 4,431,716,119.78
  5. Step 5: Solve for x
    x = 4,431,716,119.78/65,917.85
  6. Step 6: Final answer
    x = 67,230.90

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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.