Home / 66,075.28-91,145.48-40,906.96

Finding the Fourth Proportional to 66,075.28, 91,145.48 and 40,906.96

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Solution

The fourth proportional to 66,075.28, 91,145.48 and 40,906.96 is: 56,427.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,075.28 : 91,145.48 = 40,906.96 : x
  2. Step 2: Convert to fraction form
    66,075.28/91,145.48 = 40,906.96/x
  3. Step 3: Cross multiply
    66,075.28x = 91,145.48 × 40,906.96
  4. Step 4: Simplify right side
    66,075.28x = 3,728,484,504.54
  5. Step 5: Solve for x
    x = 3,728,484,504.54/66,075.28
  6. Step 6: Final answer
    x = 56,427.83

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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.