Home / 45,088.92-67,639.53-18,787.50

Finding the Fourth Proportional to 45,088.92, 67,639.53 and 18,787.50

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Solution

The fourth proportional to 45,088.92, 67,639.53 and 18,787.50 is: 28,183.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,088.92 : 67,639.53 = 18,787.50 : x
  2. Step 2: Convert to fraction form
    45,088.92/67,639.53 = 18,787.50/x
  3. Step 3: Cross multiply
    45,088.92x = 67,639.53 × 18,787.50
  4. Step 4: Simplify right side
    45,088.92x = 1,270,777,669.88
  5. Step 5: Solve for x
    x = 1,270,777,669.88/45,088.92
  6. Step 6: Final answer
    x = 28,183.81

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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.