Home / 90,075.24-135,127.44-30,912.84

Finding the Fourth Proportional to 90,075.24, 135,127.44 and 30,912.84

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Solution

The fourth proportional to 90,075.24, 135,127.44 and 30,912.84 is: 46,374.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,075.24 : 135,127.44 = 30,912.84 : x
  2. Step 2: Convert to fraction form
    90,075.24/135,127.44 = 30,912.84/x
  3. Step 3: Cross multiply
    90,075.24x = 135,127.44 × 30,912.84
  4. Step 4: Simplify right side
    90,075.24x = 4,177,172,932.33
  5. Step 5: Solve for x
    x = 4,177,172,932.33/90,075.24
  6. Step 6: Final answer
    x = 46,374.26

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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.