Home / 88,555.28-122,220.36-54,583.76

Finding the Fourth Proportional to 88,555.28, 122,220.36 and 54,583.76

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Solution

The fourth proportional to 88,555.28, 122,220.36 and 54,583.76 is: 75,334.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,555.28 : 122,220.36 = 54,583.76 : x
  2. Step 2: Convert to fraction form
    88,555.28/122,220.36 = 54,583.76/x
  3. Step 3: Cross multiply
    88,555.28x = 122,220.36 × 54,583.76
  4. Step 4: Simplify right side
    88,555.28x = 6,671,246,797.35
  5. Step 5: Solve for x
    x = 6,671,246,797.35/88,555.28
  6. Step 6: Final answer
    x = 75,334.26

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Double scale
Find fourth proportional to 88,556.28, 122,221.74 and 54,584.76
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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.