Home / 80,215.13-120,440.96-44,745.74

Finding the Fourth Proportional to 80,215.13, 120,440.96 and 44,745.74

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Solution

The fourth proportional to 80,215.13, 120,440.96 and 44,745.74 is: 67,184.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,215.13 : 120,440.96 = 44,745.74 : x
  2. Step 2: Convert to fraction form
    80,215.13/120,440.96 = 44,745.74/x
  3. Step 3: Cross multiply
    80,215.13x = 120,440.96 × 44,745.74
  4. Step 4: Simplify right side
    80,215.13x = 5,389,219,055.58
  5. Step 5: Solve for x
    x = 5,389,219,055.58/80,215.13
  6. Step 6: Final answer
    x = 67,184.57

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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.