Home / 81,507.25-122,271.81-34,771.06

Finding the Fourth Proportional to 81,507.25, 122,271.81 and 34,771.06

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Solution

The fourth proportional to 81,507.25, 122,271.81 and 34,771.06 is: 52,161.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,507.25 : 122,271.81 = 34,771.06 : x
  2. Step 2: Convert to fraction form
    81,507.25/122,271.81 = 34,771.06/x
  3. Step 3: Cross multiply
    81,507.25x = 122,271.81 × 34,771.06
  4. Step 4: Simplify right side
    81,507.25x = 4,251,520,441.82
  5. Step 5: Solve for x
    x = 4,251,520,441.82/81,507.25
  6. Step 6: Final answer
    x = 52,161.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.