Home / 66,313.05-91,516.49-40,482.56

Finding the Fourth Proportional to 66,313.05, 91,516.49 and 40,482.56

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Solution

The fourth proportional to 66,313.05, 91,516.49 and 40,482.56 is: 55,868.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,313.05 : 91,516.49 = 40,482.56 : x
  2. Step 2: Convert to fraction form
    66,313.05/91,516.49 = 40,482.56/x
  3. Step 3: Cross multiply
    66,313.05x = 91,516.49 × 40,482.56
  4. Step 4: Simplify right side
    66,313.05x = 3,704,821,137.42
  5. Step 5: Solve for x
    x = 3,704,821,137.42/66,313.05
  6. Step 6: Final answer
    x = 55,868.66

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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.