Home / 89,517.76-134,072.40-42,803.68

Finding the Fourth Proportional to 89,517.76, 134,072.40 and 42,803.68

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Solution

The fourth proportional to 89,517.76, 134,072.40 and 42,803.68 is: 64,107.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,517.76 : 134,072.40 = 42,803.68 : x
  2. Step 2: Convert to fraction form
    89,517.76/134,072.40 = 42,803.68/x
  3. Step 3: Cross multiply
    89,517.76x = 134,072.40 × 42,803.68
  4. Step 4: Simplify right side
    89,517.76x = 5,738,792,106.43
  5. Step 5: Solve for x
    x = 5,738,792,106.43/89,517.76
  6. Step 6: Final answer
    x = 64,107.86

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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.