Home / 89,689.08-123,768.36-51,454.98

Finding the Fourth Proportional to 89,689.08, 123,768.36 and 51,454.98

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Solution

The fourth proportional to 89,689.08, 123,768.36 and 51,454.98 is: 71,006.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,689.08 : 123,768.36 = 51,454.98 : x
  2. Step 2: Convert to fraction form
    89,689.08/123,768.36 = 51,454.98/x
  3. Step 3: Cross multiply
    89,689.08x = 123,768.36 × 51,454.98
  4. Step 4: Simplify right side
    89,689.08x = 6,368,498,488.43
  5. Step 5: Solve for x
    x = 6,368,498,488.43/89,689.08
  6. Step 6: Final answer
    x = 71,006.40

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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.