Home / 80,020.02-120,047.04-27,415.38

Finding the Fourth Proportional to 80,020.02, 120,047.04 and 27,415.38

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Solution

The fourth proportional to 80,020.02, 120,047.04 and 27,415.38 is: 41,128.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,020.02 : 120,047.04 = 27,415.38 : x
  2. Step 2: Convert to fraction form
    80,020.02/120,047.04 = 27,415.38/x
  3. Step 3: Cross multiply
    80,020.02x = 120,047.04 × 27,415.38
  4. Step 4: Simplify right side
    80,020.02x = 3,291,135,219.48
  5. Step 5: Solve for x
    x = 3,291,135,219.48/80,020.02
  6. Step 6: Final answer
    x = 41,128.90

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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.