Home / 45,520.73-68,280.98-12,240.79

Finding the Fourth Proportional to 45,520.73, 68,280.98 and 12,240.79

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Solution

The fourth proportional to 45,520.73, 68,280.98 and 12,240.79 is: 18,361.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,520.73 : 68,280.98 = 12,240.79 : x
  2. Step 2: Convert to fraction form
    45,520.73/68,280.98 = 12,240.79/x
  3. Step 3: Cross multiply
    45,520.73x = 68,280.98 × 12,240.79
  4. Step 4: Simplify right side
    45,520.73x = 835,812,905.27
  5. Step 5: Solve for x
    x = 835,812,905.27/45,520.73
  6. Step 6: Final answer
    x = 18,361.15

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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.