Home / 80,607.40-120,912.26-30,690.24

Finding the Fourth Proportional to 80,607.40, 120,912.26 and 30,690.24

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Solution

The fourth proportional to 80,607.40, 120,912.26 and 30,690.24 is: 46,035.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,607.40 : 120,912.26 = 30,690.24 : x
  2. Step 2: Convert to fraction form
    80,607.40/120,912.26 = 30,690.24/x
  3. Step 3: Cross multiply
    80,607.40x = 120,912.26 × 30,690.24
  4. Step 4: Simplify right side
    80,607.40x = 3,710,826,278.34
  5. Step 5: Solve for x
    x = 3,710,826,278.34/80,607.40
  6. Step 6: Final answer
    x = 46,035.80

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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.