Home / 81,730.44-112,784.87-45,921.96

Finding the Fourth Proportional to 81,730.44, 112,784.87 and 45,921.96

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Solution

The fourth proportional to 81,730.44, 112,784.87 and 45,921.96 is: 63,370.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,730.44 : 112,784.87 = 45,921.96 : x
  2. Step 2: Convert to fraction form
    81,730.44/112,784.87 = 45,921.96/x
  3. Step 3: Cross multiply
    81,730.44x = 112,784.87 × 45,921.96
  4. Step 4: Simplify right side
    81,730.44x = 5,179,302,403.55
  5. Step 5: Solve for x
    x = 5,179,302,403.55/81,730.44
  6. Step 6: Final answer
    x = 63,370.54

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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.