Home / 59,881.32-89,837.78-20,438.37

Finding the Fourth Proportional to 59,881.32, 89,837.78 and 20,438.37

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Solution

The fourth proportional to 59,881.32, 89,837.78 and 20,438.37 is: 30,662.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,881.32 : 89,837.78 = 20,438.37 : x
  2. Step 2: Convert to fraction form
    59,881.32/89,837.78 = 20,438.37/x
  3. Step 3: Cross multiply
    59,881.32x = 89,837.78 × 20,438.37
  4. Step 4: Simplify right side
    59,881.32x = 1,836,137,685.43
  5. Step 5: Solve for x
    x = 1,836,137,685.43/59,881.32
  6. Step 6: Final answer
    x = 30,662.95

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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.