Home / 45,660.27-68,490.23-12,380.24

Finding the Fourth Proportional to 45,660.27, 68,490.23 and 12,380.24

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Solution

The fourth proportional to 45,660.27, 68,490.23 and 12,380.24 is: 18,570.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,660.27 : 68,490.23 = 12,380.24 : x
  2. Step 2: Convert to fraction form
    45,660.27/68,490.23 = 12,380.24/x
  3. Step 3: Cross multiply
    45,660.27x = 68,490.23 × 12,380.24
  4. Step 4: Simplify right side
    45,660.27x = 847,925,698.84
  5. Step 5: Solve for x
    x = 847,925,698.84/45,660.27
  6. Step 6: Final answer
    x = 18,570.32

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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.