Home / 81,212.14-121,810.23-25,037.07

Finding the Fourth Proportional to 81,212.14, 121,810.23 and 25,037.07

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Solution

The fourth proportional to 81,212.14, 121,810.23 and 25,037.07 is: 37,553.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,212.14 : 121,810.23 = 25,037.07 : x
  2. Step 2: Convert to fraction form
    81,212.14/121,810.23 = 25,037.07/x
  3. Step 3: Cross multiply
    81,212.14x = 121,810.23 × 25,037.07
  4. Step 4: Simplify right side
    81,212.14x = 3,049,770,798.44
  5. Step 5: Solve for x
    x = 3,049,770,798.44/81,212.14
  6. Step 6: Final answer
    x = 37,553.14

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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.