Home / 81,749.60-122,601.36-35,053.28

Finding the Fourth Proportional to 81,749.60, 122,601.36 and 35,053.28

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Solution

The fourth proportional to 81,749.60, 122,601.36 and 35,053.28 is: 52,570.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,749.60 : 122,601.36 = 35,053.28 : x
  2. Step 2: Convert to fraction form
    81,749.60/122,601.36 = 35,053.28/x
  3. Step 3: Cross multiply
    81,749.60x = 122,601.36 × 35,053.28
  4. Step 4: Simplify right side
    81,749.60x = 4,297,579,800.46
  5. Step 5: Solve for x
    x = 4,297,579,800.46/81,749.60
  6. Step 6: Final answer
    x = 52,570.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.