Home / 86,896.86-119,971.83-66,713.55

Finding the Fourth Proportional to 86,896.86, 119,971.83 and 66,713.55

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Solution

The fourth proportional to 86,896.86, 119,971.83 and 66,713.55 is: 92,106.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,896.86 : 119,971.83 = 66,713.55 : x
  2. Step 2: Convert to fraction form
    86,896.86/119,971.83 = 66,713.55/x
  3. Step 3: Cross multiply
    86,896.86x = 119,971.83 × 66,713.55
  4. Step 4: Simplify right side
    86,896.86x = 8,003,746,679.30
  5. Step 5: Solve for x
    x = 8,003,746,679.30/86,896.86
  6. Step 6: Final answer
    x = 92,106.28

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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.