Home / 81,921.78-113,039.85-46,109.67

Finding the Fourth Proportional to 81,921.78, 113,039.85 and 46,109.67

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Solution

The fourth proportional to 81,921.78, 113,039.85 and 46,109.67 is: 63,624.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,921.78 : 113,039.85 = 46,109.67 : x
  2. Step 2: Convert to fraction form
    81,921.78/113,039.85 = 46,109.67/x
  3. Step 3: Cross multiply
    81,921.78x = 113,039.85 × 46,109.67
  4. Step 4: Simplify right side
    81,921.78x = 5,212,230,180.35
  5. Step 5: Solve for x
    x = 5,212,230,180.35/81,921.78
  6. Step 6: Final answer
    x = 63,624.47

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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.