Home / 81,150.26-121,769.12-33,798.06

Finding the Fourth Proportional to 81,150.26, 121,769.12 and 33,798.06

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Solution

The fourth proportional to 81,150.26, 121,769.12 and 33,798.06 is: 50,715.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,150.26 : 121,769.12 = 33,798.06 : x
  2. Step 2: Convert to fraction form
    81,150.26/121,769.12 = 33,798.06/x
  3. Step 3: Cross multiply
    81,150.26x = 121,769.12 × 33,798.06
  4. Step 4: Simplify right side
    81,150.26x = 4,115,560,108.40
  5. Step 5: Solve for x
    x = 4,115,560,108.40/81,150.26
  6. Step 6: Final answer
    x = 50,715.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.