Home / 90,075.45-135,120.84-26,891.52

Finding the Fourth Proportional to 90,075.45, 135,120.84 and 26,891.52

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Solution

The fourth proportional to 90,075.45, 135,120.84 and 26,891.52 is: 40,339.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,075.45 : 135,120.84 = 26,891.52 : x
  2. Step 2: Convert to fraction form
    90,075.45/135,120.84 = 26,891.52/x
  3. Step 3: Cross multiply
    90,075.45x = 135,120.84 × 26,891.52
  4. Step 4: Simplify right side
    90,075.45x = 3,633,604,771.28
  5. Step 5: Solve for x
    x = 3,633,604,771.28/90,075.45
  6. Step 6: Final answer
    x = 40,339.57

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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.