Home / 54,815.42-75,645.51-30,942.38

Finding the Fourth Proportional to 54,815.42, 75,645.51 and 30,942.38

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Solution

The fourth proportional to 54,815.42, 75,645.51 and 30,942.38 is: 42,700.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,815.42 : 75,645.51 = 30,942.38 : x
  2. Step 2: Convert to fraction form
    54,815.42/75,645.51 = 30,942.38/x
  3. Step 3: Cross multiply
    54,815.42x = 75,645.51 × 30,942.38
  4. Step 4: Simplify right side
    54,815.42x = 2,340,652,115.71
  5. Step 5: Solve for x
    x = 2,340,652,115.71/54,815.42
  6. Step 6: Final answer
    x = 42,700.61

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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.