Home / 60,791.12-83,791.32-40,640.66

Finding the Fourth Proportional to 60,791.12, 83,791.32 and 40,640.66

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Solution

The fourth proportional to 60,791.12, 83,791.32 and 40,640.66 is: 56,016.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,791.12 : 83,791.32 = 40,640.66 : x
  2. Step 2: Convert to fraction form
    60,791.12/83,791.32 = 40,640.66/x
  3. Step 3: Cross multiply
    60,791.12x = 83,791.32 × 40,640.66
  4. Step 4: Simplify right side
    60,791.12x = 3,405,334,128.11
  5. Step 5: Solve for x
    x = 3,405,334,128.11/60,791.12
  6. Step 6: Final answer
    x = 56,016.97

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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.