Home / 81,834.54-112,914.73-47,836.45

Finding the Fourth Proportional to 81,834.54, 112,914.73 and 47,836.45

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Solution

The fourth proportional to 81,834.54, 112,914.73 and 47,836.45 is: 66,004.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,834.54 : 112,914.73 = 47,836.45 : x
  2. Step 2: Convert to fraction form
    81,834.54/112,914.73 = 47,836.45/x
  3. Step 3: Cross multiply
    81,834.54x = 112,914.73 × 47,836.45
  4. Step 4: Simplify right side
    81,834.54x = 5,401,439,835.91
  5. Step 5: Solve for x
    x = 5,401,439,835.91/81,834.54
  6. Step 6: Final answer
    x = 66,004.40

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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.