Home / 81,723.40-112,771.38-45,910.60

Finding the Fourth Proportional to 81,723.40, 112,771.38 and 45,910.60

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Solution

The fourth proportional to 81,723.40, 112,771.38 and 45,910.60 is: 63,352.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,723.40 : 112,771.38 = 45,910.60 : x
  2. Step 2: Convert to fraction form
    81,723.40/112,771.38 = 45,910.60/x
  3. Step 3: Cross multiply
    81,723.40x = 112,771.38 × 45,910.60
  4. Step 4: Simplify right side
    81,723.40x = 5,177,401,718.63
  5. Step 5: Solve for x
    x = 5,177,401,718.63/81,723.40
  6. Step 6: Final answer
    x = 63,352.74

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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.