Home / 81,674.02-112,722.36-49,861.42

Finding the Fourth Proportional to 81,674.02, 112,722.36 and 49,861.42

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Solution

The fourth proportional to 81,674.02, 112,722.36 and 49,861.42 is: 68,816.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,674.02 : 112,722.36 = 49,861.42 : x
  2. Step 2: Convert to fraction form
    81,674.02/112,722.36 = 49,861.42/x
  3. Step 3: Cross multiply
    81,674.02x = 112,722.36 × 49,861.42
  4. Step 4: Simplify right side
    81,674.02x = 5,620,496,935.35
  5. Step 5: Solve for x
    x = 5,620,496,935.35/81,674.02
  6. Step 6: Final answer
    x = 68,816.22

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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.