Home / 89,399.55-123,396.21-51,180.51

Finding the Fourth Proportional to 89,399.55, 123,396.21 and 51,180.51

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Solution

The fourth proportional to 89,399.55, 123,396.21 and 51,180.51 is: 70,643.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,399.55 : 123,396.21 = 51,180.51 : x
  2. Step 2: Convert to fraction form
    89,399.55/123,396.21 = 51,180.51/x
  3. Step 3: Cross multiply
    89,399.55x = 123,396.21 × 51,180.51
  4. Step 4: Simplify right side
    89,399.55x = 6,315,480,959.87
  5. Step 5: Solve for x
    x = 6,315,480,959.87/89,399.55
  6. Step 6: Final answer
    x = 70,643.32

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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.