Home / 80,015.02-120,040.40-30,095.55

Finding the Fourth Proportional to 80,015.02, 120,040.40 and 30,095.55

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Solution

The fourth proportional to 80,015.02, 120,040.40 and 30,095.55 is: 45,150.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,015.02 : 120,040.40 = 30,095.55 : x
  2. Step 2: Convert to fraction form
    80,015.02/120,040.40 = 30,095.55/x
  3. Step 3: Cross multiply
    80,015.02x = 120,040.40 × 30,095.55
  4. Step 4: Simplify right side
    80,015.02x = 3,612,681,260.02
  5. Step 5: Solve for x
    x = 3,612,681,260.02/80,015.02
  6. Step 6: Final answer
    x = 45,150.04

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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.