Home / 89,400.05-123,396.90-51,181.01

Finding the Fourth Proportional to 89,400.05, 123,396.90 and 51,181.01

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Solution

The fourth proportional to 89,400.05, 123,396.90 and 51,181.01 is: 70,644.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,400.05 : 123,396.90 = 51,181.01 : x
  2. Step 2: Convert to fraction form
    89,400.05/123,396.90 = 51,181.01/x
  3. Step 3: Cross multiply
    89,400.05x = 123,396.90 × 51,181.01
  4. Step 4: Simplify right side
    89,400.05x = 6,315,577,972.87
  5. Step 5: Solve for x
    x = 6,315,577,972.87/89,400.05
  6. Step 6: Final answer
    x = 70,644.01

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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.