Home / 89,692.36-123,780.78-51,451.65

Finding the Fourth Proportional to 89,692.36, 123,780.78 and 51,451.65

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Solution

The fourth proportional to 89,692.36, 123,780.78 and 51,451.65 is: 71,006.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,692.36 : 123,780.78 = 51,451.65 : x
  2. Step 2: Convert to fraction form
    89,692.36/123,780.78 = 51,451.65/x
  3. Step 3: Cross multiply
    89,692.36x = 123,780.78 × 51,451.65
  4. Step 4: Simplify right side
    89,692.36x = 6,368,725,369.29
  5. Step 5: Solve for x
    x = 6,368,725,369.29/89,692.36
  6. Step 6: Final answer
    x = 71,006.33

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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.