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Finding the Fourth Proportional to 84,017.24, 115,942.89 and 48,212.89

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Solution

The fourth proportional to 84,017.24, 115,942.89 and 48,212.89 is: 66,533.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,017.24 : 115,942.89 = 48,212.89 : x
  2. Step 2: Convert to fraction form
    84,017.24/115,942.89 = 48,212.89/x
  3. Step 3: Cross multiply
    84,017.24x = 115,942.89 × 48,212.89
  4. Step 4: Simplify right side
    84,017.24x = 5,589,941,801.85
  5. Step 5: Solve for x
    x = 5,589,941,801.85/84,017.24
  6. Step 6: Final answer
    x = 66,533.27

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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.