Home / 49,390.58-68,158.31-28,170.20

Finding the Fourth Proportional to 49,390.58, 68,158.31 and 28,170.20

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Solution

The fourth proportional to 49,390.58, 68,158.31 and 28,170.20 is: 38,874.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,390.58 : 68,158.31 = 28,170.20 : x
  2. Step 2: Convert to fraction form
    49,390.58/68,158.31 = 28,170.20/x
  3. Step 3: Cross multiply
    49,390.58x = 68,158.31 × 28,170.20
  4. Step 4: Simplify right side
    49,390.58x = 1,920,032,742.72
  5. Step 5: Solve for x
    x = 1,920,032,742.72/49,390.58
  6. Step 6: Final answer
    x = 38,874.48

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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.