Home / 59,787.21-89,690.55-20,340.21

Finding the Fourth Proportional to 59,787.21, 89,690.55 and 20,340.21

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Solution

The fourth proportional to 59,787.21, 89,690.55 and 20,340.21 is: 30,513.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,787.21 : 89,690.55 = 20,340.21 : x
  2. Step 2: Convert to fraction form
    59,787.21/89,690.55 = 20,340.21/x
  3. Step 3: Cross multiply
    59,787.21x = 89,690.55 × 20,340.21
  4. Step 4: Simplify right side
    59,787.21x = 1,824,324,622.02
  5. Step 5: Solve for x
    x = 1,824,324,622.02/59,787.21
  6. Step 6: Final answer
    x = 30,513.63

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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.