Home / 89,492.72-123,500.20-49,210.60

Finding the Fourth Proportional to 89,492.72, 123,500.20 and 49,210.60

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Solution

The fourth proportional to 89,492.72, 123,500.20 and 49,210.60 is: 67,910.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,492.72 : 123,500.20 = 49,210.60 : x
  2. Step 2: Convert to fraction form
    89,492.72/123,500.20 = 49,210.60/x
  3. Step 3: Cross multiply
    89,492.72x = 123,500.20 × 49,210.60
  4. Step 4: Simplify right side
    89,492.72x = 6,077,518,942.12
  5. Step 5: Solve for x
    x = 6,077,518,942.12/89,492.72
  6. Step 6: Final answer
    x = 67,910.76

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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.