Home / 80,080.04-120,162.89-51,993.50

Finding the Fourth Proportional to 80,080.04, 120,162.89 and 51,993.50

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Solution

The fourth proportional to 80,080.04, 120,162.89 and 51,993.50 is: 78,018.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,080.04 : 120,162.89 = 51,993.50 : x
  2. Step 2: Convert to fraction form
    80,080.04/120,162.89 = 51,993.50/x
  3. Step 3: Cross multiply
    80,080.04x = 120,162.89 × 51,993.50
  4. Step 4: Simplify right side
    80,080.04x = 6,247,688,750.38
  5. Step 5: Solve for x
    x = 6,247,688,750.38/80,080.04
  6. Step 6: Final answer
    x = 78,018.05

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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.