Home / 66,356.91-91,571.16-36,142.77

Finding the Fourth Proportional to 66,356.91, 91,571.16 and 36,142.77

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Solution

The fourth proportional to 66,356.91, 91,571.16 and 36,142.77 is: 49,876.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,356.91 : 91,571.16 = 36,142.77 : x
  2. Step 2: Convert to fraction form
    66,356.91/91,571.16 = 36,142.77/x
  3. Step 3: Cross multiply
    66,356.91x = 91,571.16 × 36,142.77
  4. Step 4: Simplify right side
    66,356.91x = 3,309,635,374.51
  5. Step 5: Solve for x
    x = 3,309,635,374.51/66,356.91
  6. Step 6: Final answer
    x = 49,876.27

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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.