Home / 66,427.80-91,660.86-41,268.12

Finding the Fourth Proportional to 66,427.80, 91,660.86 and 41,268.12

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Solution

The fourth proportional to 66,427.80, 91,660.86 and 41,268.12 is: 56,944.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,427.80 : 91,660.86 = 41,268.12 : x
  2. Step 2: Convert to fraction form
    66,427.80/91,660.86 = 41,268.12/x
  3. Step 3: Cross multiply
    66,427.80x = 91,660.86 × 41,268.12
  4. Step 4: Simplify right side
    66,427.80x = 3,782,671,369.78
  5. Step 5: Solve for x
    x = 3,782,671,369.78/66,427.80
  6. Step 6: Final answer
    x = 56,944.10

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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.