Home / 80,027.02-120,007.32-30,081.34

Finding the Fourth Proportional to 80,027.02, 120,007.32 and 30,081.34

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Solution

The fourth proportional to 80,027.02, 120,007.32 and 30,081.34 is: 45,109.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,027.02 : 120,007.32 = 30,081.34 : x
  2. Step 2: Convert to fraction form
    80,027.02/120,007.32 = 30,081.34/x
  3. Step 3: Cross multiply
    80,027.02x = 120,007.32 × 30,081.34
  4. Step 4: Simplify right side
    80,027.02x = 3,609,980,995.41
  5. Step 5: Solve for x
    x = 3,609,980,995.41/80,027.02
  6. Step 6: Final answer
    x = 45,109.53

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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.