Home / 70,821.90-106,298.46-35,786.16

Finding the Fourth Proportional to 70,821.90, 106,298.46 and 35,786.16

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Solution

The fourth proportional to 70,821.90, 106,298.46 and 35,786.16 is: 53,712.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,821.90 : 106,298.46 = 35,786.16 : x
  2. Step 2: Convert to fraction form
    70,821.90/106,298.46 = 35,786.16/x
  3. Step 3: Cross multiply
    70,821.90x = 106,298.46 × 35,786.16
  4. Step 4: Simplify right side
    70,821.90x = 3,804,013,697.31
  5. Step 5: Solve for x
    x = 3,804,013,697.31/70,821.90
  6. Step 6: Final answer
    x = 53,712.39

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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.