Home / 82,474.02-123,709.95-20,145.06

Finding the Fourth Proportional to 82,474.02, 123,709.95 and 20,145.06

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Solution

The fourth proportional to 82,474.02, 123,709.95 and 20,145.06 is: 30,217.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,474.02 : 123,709.95 = 20,145.06 : x
  2. Step 2: Convert to fraction form
    82,474.02/123,709.95 = 20,145.06/x
  3. Step 3: Cross multiply
    82,474.02x = 123,709.95 × 20,145.06
  4. Step 4: Simplify right side
    82,474.02x = 2,492,144,365.35
  5. Step 5: Solve for x
    x = 2,492,144,365.35/82,474.02
  6. Step 6: Final answer
    x = 30,217.33

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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.