Home / 65,949.36-91,009.80-36,141.36

Finding the Fourth Proportional to 65,949.36, 91,009.80 and 36,141.36

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Solution

The fourth proportional to 65,949.36, 91,009.80 and 36,141.36 is: 49,874.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,949.36 : 91,009.80 = 36,141.36 : x
  2. Step 2: Convert to fraction form
    65,949.36/91,009.80 = 36,141.36/x
  3. Step 3: Cross multiply
    65,949.36x = 91,009.80 × 36,141.36
  4. Step 4: Simplify right side
    65,949.36x = 3,289,217,945.33
  5. Step 5: Solve for x
    x = 3,289,217,945.33/65,949.36
  6. Step 6: Final answer
    x = 49,874.90

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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.