Home / 69,415.09-95,782.49-39,199.81

Finding the Fourth Proportional to 69,415.09, 95,782.49 and 39,199.81

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Solution

The fourth proportional to 69,415.09, 95,782.49 and 39,199.81 is: 54,089.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,415.09 : 95,782.49 = 39,199.81 : x
  2. Step 2: Convert to fraction form
    69,415.09/95,782.49 = 39,199.81/x
  3. Step 3: Cross multiply
    69,415.09x = 95,782.49 × 39,199.81
  4. Step 4: Simplify right side
    69,415.09x = 3,754,655,409.33
  5. Step 5: Solve for x
    x = 3,754,655,409.33/69,415.09
  6. Step 6: Final answer
    x = 54,089.90

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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.