Home / 67,306.21-100,955.67-20,555.44

Finding the Fourth Proportional to 67,306.21, 100,955.67 and 20,555.44

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Solution

The fourth proportional to 67,306.21, 100,955.67 and 20,555.44 is: 30,832.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,306.21 : 100,955.67 = 20,555.44 : x
  2. Step 2: Convert to fraction form
    67,306.21/100,955.67 = 20,555.44/x
  3. Step 3: Cross multiply
    67,306.21x = 100,955.67 × 20,555.44
  4. Step 4: Simplify right side
    67,306.21x = 2,075,187,887.87
  5. Step 5: Solve for x
    x = 2,075,187,887.87/67,306.21
  6. Step 6: Final answer
    x = 30,832.04

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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.