Home / 89,815.45-123,946.20-49,530.64

Finding the Fourth Proportional to 89,815.45, 123,946.20 and 49,530.64

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Solution

The fourth proportional to 89,815.45, 123,946.20 and 49,530.64 is: 68,352.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,815.45 : 123,946.20 = 49,530.64 : x
  2. Step 2: Convert to fraction form
    89,815.45/123,946.20 = 49,530.64/x
  3. Step 3: Cross multiply
    89,815.45x = 123,946.20 × 49,530.64
  4. Step 4: Simplify right side
    89,815.45x = 6,139,134,611.57
  5. Step 5: Solve for x
    x = 6,139,134,611.57/89,815.45
  6. Step 6: Final answer
    x = 68,352.77

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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.