Home / 81,070.64-111,879.36-50,857.23

Finding the Fourth Proportional to 81,070.64, 111,879.36 and 50,857.23

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Solution

The fourth proportional to 81,070.64, 111,879.36 and 50,857.23 is: 70,184.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,070.64 : 111,879.36 = 50,857.23 : x
  2. Step 2: Convert to fraction form
    81,070.64/111,879.36 = 50,857.23/x
  3. Step 3: Cross multiply
    81,070.64x = 111,879.36 × 50,857.23
  4. Step 4: Simplify right side
    81,070.64x = 5,689,874,343.77
  5. Step 5: Solve for x
    x = 5,689,874,343.77/81,070.64
  6. Step 6: Final answer
    x = 70,184.16

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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.