Home / 81,629.37-112,650.55-45,822.11

Finding the Fourth Proportional to 81,629.37, 112,650.55 and 45,822.11

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Solution

The fourth proportional to 81,629.37, 112,650.55 and 45,822.11 is: 63,235.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,629.37 : 112,650.55 = 45,822.11 : x
  2. Step 2: Convert to fraction form
    81,629.37/112,650.55 = 45,822.11/x
  3. Step 3: Cross multiply
    81,629.37x = 112,650.55 × 45,822.11
  4. Step 4: Simplify right side
    81,629.37x = 5,161,885,215.85
  5. Step 5: Solve for x
    x = 5,161,885,215.85/81,629.37
  6. Step 6: Final answer
    x = 63,235.64

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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.