Home / 82,188.72-123,288.54-28,874.22

Finding the Fourth Proportional to 82,188.72, 123,288.54 and 28,874.22

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Solution

The fourth proportional to 82,188.72, 123,288.54 and 28,874.22 is: 43,313.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,188.72 : 123,288.54 = 28,874.22 : x
  2. Step 2: Convert to fraction form
    82,188.72/123,288.54 = 28,874.22/x
  3. Step 3: Cross multiply
    82,188.72x = 123,288.54 × 28,874.22
  4. Step 4: Simplify right side
    82,188.72x = 3,559,860,427.44
  5. Step 5: Solve for x
    x = 3,559,860,427.44/82,188.72
  6. Step 6: Final answer
    x = 43,313.25

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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.