Home / 90,997.83-136,410.48-31,795.02

Finding the Fourth Proportional to 90,997.83, 136,410.48 and 31,795.02

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Solution

The fourth proportional to 90,997.83, 136,410.48 and 31,795.02 is: 47,662.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,997.83 : 136,410.48 = 31,795.02 : x
  2. Step 2: Convert to fraction form
    90,997.83/136,410.48 = 31,795.02/x
  3. Step 3: Cross multiply
    90,997.83x = 136,410.48 × 31,795.02
  4. Step 4: Simplify right side
    90,997.83x = 4,337,173,939.81
  5. Step 5: Solve for x
    x = 4,337,173,939.81/90,997.83
  6. Step 6: Final answer
    x = 47,662.39

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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.