Home / 81,379.27-112,314.77-58,791.34

Finding the Fourth Proportional to 81,379.27, 112,314.77 and 58,791.34

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Solution

The fourth proportional to 81,379.27, 112,314.77 and 58,791.34 is: 81,140.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,379.27 : 112,314.77 = 58,791.34 : x
  2. Step 2: Convert to fraction form
    81,379.27/112,314.77 = 58,791.34/x
  3. Step 3: Cross multiply
    81,379.27x = 112,314.77 × 58,791.34
  4. Step 4: Simplify right side
    81,379.27x = 6,603,135,830.09
  5. Step 5: Solve for x
    x = 6,603,135,830.09/81,379.27
  6. Step 6: Final answer
    x = 81,140.27

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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.