Home / 89,455.23-123,456.74-51,217.80

Finding the Fourth Proportional to 89,455.23, 123,456.74 and 51,217.80

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Solution

The fourth proportional to 89,455.23, 123,456.74 and 51,217.80 is: 70,685.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,455.23 : 123,456.74 = 51,217.80 : x
  2. Step 2: Convert to fraction form
    89,455.23/123,456.74 = 51,217.80/x
  3. Step 3: Cross multiply
    89,455.23x = 123,456.74 × 51,217.80
  4. Step 4: Simplify right side
    89,455.23x = 6,323,182,361.88
  5. Step 5: Solve for x
    x = 6,323,182,361.88/89,455.23
  6. Step 6: Final answer
    x = 70,685.44

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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.