Home / 89,399.04-123,372.74-49,115.30

Finding the Fourth Proportional to 89,399.04, 123,372.74 and 49,115.30

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Solution

The fourth proportional to 89,399.04, 123,372.74 and 49,115.30 is: 67,780.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,399.04 : 123,372.74 = 49,115.30 : x
  2. Step 2: Convert to fraction form
    89,399.04/123,372.74 = 49,115.30/x
  3. Step 3: Cross multiply
    89,399.04x = 123,372.74 × 49,115.30
  4. Step 4: Simplify right side
    89,399.04x = 6,059,489,136.92
  5. Step 5: Solve for x
    x = 6,059,489,136.92/89,399.04
  6. Step 6: Final answer
    x = 67,780.25

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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.