Home / 89,618.84-123,669.50-49,331.60

Finding the Fourth Proportional to 89,618.84, 123,669.50 and 49,331.60

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Solution

The fourth proportional to 89,618.84, 123,669.50 and 49,331.60 is: 68,075.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,618.84 : 123,669.50 = 49,331.60 : x
  2. Step 2: Convert to fraction form
    89,618.84/123,669.50 = 49,331.60/x
  3. Step 3: Cross multiply
    89,618.84x = 123,669.50 × 49,331.60
  4. Step 4: Simplify right side
    89,618.84x = 6,100,814,306.20
  5. Step 5: Solve for x
    x = 6,100,814,306.20/89,618.84
  6. Step 6: Final answer
    x = 68,075.13

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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.