Home / 88,990.32-122,794.77-51,257.28

Finding the Fourth Proportional to 88,990.32, 122,794.77 and 51,257.28

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Solution

The fourth proportional to 88,990.32, 122,794.77 and 51,257.28 is: 70,728.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,990.32 : 122,794.77 = 51,257.28 : x
  2. Step 2: Convert to fraction form
    88,990.32/122,794.77 = 51,257.28/x
  3. Step 3: Cross multiply
    88,990.32x = 122,794.77 × 51,257.28
  4. Step 4: Simplify right side
    88,990.32x = 6,294,125,908.43
  5. Step 5: Solve for x
    x = 6,294,125,908.43/88,990.32
  6. Step 6: Final answer
    x = 70,728.21

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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.