Home / 81,741.62-122,415.60-46,574.66

Finding the Fourth Proportional to 81,741.62, 122,415.60 and 46,574.66

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Solution

The fourth proportional to 81,741.62, 122,415.60 and 46,574.66 is: 69,749.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,741.62 : 122,415.60 = 46,574.66 : x
  2. Step 2: Convert to fraction form
    81,741.62/122,415.60 = 46,574.66/x
  3. Step 3: Cross multiply
    81,741.62x = 122,415.60 × 46,574.66
  4. Step 4: Simplify right side
    81,741.62x = 5,701,464,948.70
  5. Step 5: Solve for x
    x = 5,701,464,948.70/81,741.62
  6. Step 6: Final answer
    x = 69,749.84

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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.