Home / 81,749.58-112,813.41-45,945.66

Finding the Fourth Proportional to 81,749.58, 112,813.41 and 45,945.66

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Solution

The fourth proportional to 81,749.58, 112,813.41 and 45,945.66 is: 63,404.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,749.58 : 112,813.41 = 45,945.66 : x
  2. Step 2: Convert to fraction form
    81,749.58/112,813.41 = 45,945.66/x
  3. Step 3: Cross multiply
    81,749.58x = 112,813.41 × 45,945.66
  4. Step 4: Simplify right side
    81,749.58x = 5,183,286,349.57
  5. Step 5: Solve for x
    x = 5,183,286,349.57/81,749.58
  6. Step 6: Final answer
    x = 63,404.44

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1.5x scale

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.