Home / 89,503.50-123,512.20-49,217.22

Finding the Fourth Proportional to 89,503.50, 123,512.20 and 49,217.22

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Solution

The fourth proportional to 89,503.50, 123,512.20 and 49,217.22 is: 67,918.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,503.50 : 123,512.20 = 49,217.22 : x
  2. Step 2: Convert to fraction form
    89,503.50/123,512.20 = 49,217.22/x
  3. Step 3: Cross multiply
    89,503.50x = 123,512.20 × 49,217.22
  4. Step 4: Simplify right side
    89,503.50x = 6,078,927,120.08
  5. Step 5: Solve for x
    x = 6,078,927,120.08/89,503.50
  6. Step 6: Final answer
    x = 67,918.32

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1.5x scale

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.