Home / 66,080.16-91,225.92-50,939.76

Finding the Fourth Proportional to 66,080.16, 91,225.92 and 50,939.76

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Solution

The fourth proportional to 66,080.16, 91,225.92 and 50,939.76 is: 70,324.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,080.16 : 91,225.92 = 50,939.76 : x
  2. Step 2: Convert to fraction form
    66,080.16/91,225.92 = 50,939.76/x
  3. Step 3: Cross multiply
    66,080.16x = 91,225.92 × 50,939.76
  4. Step 4: Simplify right side
    66,080.16x = 4,647,026,470.58
  5. Step 5: Solve for x
    x = 4,647,026,470.58/66,080.16
  6. Step 6: Final answer
    x = 70,324.08

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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.