Home / 49,129.28-67,803.36-28,992.32

Finding the Fourth Proportional to 49,129.28, 67,803.36 and 28,992.32

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Solution

The fourth proportional to 49,129.28, 67,803.36 and 28,992.32 is: 40,012.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,129.28 : 67,803.36 = 28,992.32 : x
  2. Step 2: Convert to fraction form
    49,129.28/67,803.36 = 28,992.32/x
  3. Step 3: Cross multiply
    49,129.28x = 67,803.36 × 28,992.32
  4. Step 4: Simplify right side
    49,129.28x = 1,965,776,710.20
  5. Step 5: Solve for x
    x = 1,965,776,710.20/49,129.28
  6. Step 6: Final answer
    x = 40,012.32

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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.