Home / 66,756.21-92,121.74-38,075.22

Finding the Fourth Proportional to 66,756.21, 92,121.74 and 38,075.22

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Solution

The fourth proportional to 66,756.21, 92,121.74 and 38,075.22 is: 52,542.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,756.21 : 92,121.74 = 38,075.22 : x
  2. Step 2: Convert to fraction form
    66,756.21/92,121.74 = 38,075.22/x
  3. Step 3: Cross multiply
    66,756.21x = 92,121.74 × 38,075.22
  4. Step 4: Simplify right side
    66,756.21x = 3,507,555,469.69
  5. Step 5: Solve for x
    x = 3,507,555,469.69/66,756.21
  6. Step 6: Final answer
    x = 52,542.76

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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.