Home / 81,144.76-111,960.58-47,133.04

Finding the Fourth Proportional to 81,144.76, 111,960.58 and 47,133.04

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Solution

The fourth proportional to 81,144.76, 111,960.58 and 47,133.04 is: 65,032.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,144.76 : 111,960.58 = 47,133.04 : x
  2. Step 2: Convert to fraction form
    81,144.76/111,960.58 = 47,133.04/x
  3. Step 3: Cross multiply
    81,144.76x = 111,960.58 × 47,133.04
  4. Step 4: Simplify right side
    81,144.76x = 5,277,042,495.56
  5. Step 5: Solve for x
    x = 5,277,042,495.56/81,144.76
  6. Step 6: Final answer
    x = 65,032.45

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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.