Home / 80,184.54-120,277.34-21,019.70

Finding the Fourth Proportional to 80,184.54, 120,277.34 and 21,019.70

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Solution

The fourth proportional to 80,184.54, 120,277.34 and 21,019.70 is: 31,529.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,184.54 : 120,277.34 = 21,019.70 : x
  2. Step 2: Convert to fraction form
    80,184.54/120,277.34 = 21,019.70/x
  3. Step 3: Cross multiply
    80,184.54x = 120,277.34 × 21,019.70
  4. Step 4: Simplify right side
    80,184.54x = 2,528,193,603.60
  5. Step 5: Solve for x
    x = 2,528,193,603.60/80,184.54
  6. Step 6: Final answer
    x = 31,529.69

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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.