Home / 81,273.78-112,147.54-47,293.27

Finding the Fourth Proportional to 81,273.78, 112,147.54 and 47,293.27

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Solution

The fourth proportional to 81,273.78, 112,147.54 and 47,293.27 is: 65,258.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,273.78 : 112,147.54 = 47,293.27 : x
  2. Step 2: Convert to fraction form
    81,273.78/112,147.54 = 47,293.27/x
  3. Step 3: Cross multiply
    81,273.78x = 112,147.54 × 47,293.27
  4. Step 4: Simplify right side
    81,273.78x = 5,303,823,490.45
  5. Step 5: Solve for x
    x = 5,303,823,490.45/81,273.78
  6. Step 6: Final answer
    x = 65,258.73

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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.