Home / 84,077.87-125,586.37-70,791.85

Finding the Fourth Proportional to 84,077.87, 125,586.37 and 70,791.85

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Solution

The fourth proportional to 84,077.87, 125,586.37 and 70,791.85 is: 105,741.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,077.87 : 125,586.37 = 70,791.85 : x
  2. Step 2: Convert to fraction form
    84,077.87/125,586.37 = 70,791.85/x
  3. Step 3: Cross multiply
    84,077.87x = 125,586.37 × 70,791.85
  4. Step 4: Simplify right side
    84,077.87x = 8,890,491,467.08
  5. Step 5: Solve for x
    x = 8,890,491,467.08/84,077.87
  6. Step 6: Final answer
    x = 105,741.16

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.