Home / 89,692.56-123,775.14-49,405.38

Finding the Fourth Proportional to 89,692.56, 123,775.14 and 49,405.38

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Solution

The fourth proportional to 89,692.56, 123,775.14 and 49,405.38 is: 68,179.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,692.56 : 123,775.14 = 49,405.38 : x
  2. Step 2: Convert to fraction form
    89,692.56/123,775.14 = 49,405.38/x
  3. Step 3: Cross multiply
    89,692.56x = 123,775.14 × 49,405.38
  4. Step 4: Simplify right side
    89,692.56x = 6,115,157,826.25
  5. Step 5: Solve for x
    x = 6,115,157,826.25/89,692.56
  6. Step 6: Final answer
    x = 68,179.10

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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.