Home / 89,803.76-123,930.06-49,518.95

Finding the Fourth Proportional to 89,803.76, 123,930.06 and 49,518.95

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Solution

The fourth proportional to 89,803.76, 123,930.06 and 49,518.95 is: 68,336.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,803.76 : 123,930.06 = 49,518.95 : x
  2. Step 2: Convert to fraction form
    89,803.76/123,930.06 = 49,518.95/x
  3. Step 3: Cross multiply
    89,803.76x = 123,930.06 × 49,518.95
  4. Step 4: Simplify right side
    89,803.76x = 6,136,886,754.46
  5. Step 5: Solve for x
    x = 6,136,886,754.46/89,803.76
  6. Step 6: Final answer
    x = 68,336.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.