Home / 54,037.32-81,012.24-20,740.38

Finding the Fourth Proportional to 54,037.32, 81,012.24 and 20,740.38

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Solution

The fourth proportional to 54,037.32, 81,012.24 and 20,740.38 is: 31,093.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,037.32 : 81,012.24 = 20,740.38 : x
  2. Step 2: Convert to fraction form
    54,037.32/81,012.24 = 20,740.38/x
  3. Step 3: Cross multiply
    54,037.32x = 81,012.24 × 20,740.38
  4. Step 4: Simplify right side
    54,037.32x = 1,680,224,642.25
  5. Step 5: Solve for x
    x = 1,680,224,642.25/54,037.32
  6. Step 6: Final answer
    x = 31,093.78

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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.