Home / 82,000.02-123,000.30-25,845.42

Finding the Fourth Proportional to 82,000.02, 123,000.30 and 25,845.42

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Solution

The fourth proportional to 82,000.02, 123,000.30 and 25,845.42 is: 38,768.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,000.02 : 123,000.30 = 25,845.42 : x
  2. Step 2: Convert to fraction form
    82,000.02/123,000.30 = 25,845.42/x
  3. Step 3: Cross multiply
    82,000.02x = 123,000.30 × 25,845.42
  4. Step 4: Simplify right side
    82,000.02x = 3,178,994,413.63
  5. Step 5: Solve for x
    x = 3,178,994,413.63/82,000.02
  6. Step 6: Final answer
    x = 38,768.22

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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.