Home / 89,280.36-123,206.94-51,554.88

Finding the Fourth Proportional to 89,280.36, 123,206.94 and 51,554.88

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Solution

The fourth proportional to 89,280.36, 123,206.94 and 51,554.88 is: 71,145.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,280.36 : 123,206.94 = 51,554.88 : x
  2. Step 2: Convert to fraction form
    89,280.36/123,206.94 = 51,554.88/x
  3. Step 3: Cross multiply
    89,280.36x = 123,206.94 × 51,554.88
  4. Step 4: Simplify right side
    89,280.36x = 6,351,919,006.87
  5. Step 5: Solve for x
    x = 6,351,919,006.87/89,280.36
  6. Step 6: Final answer
    x = 71,145.76

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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.