Home / 89,690.66-123,774.98-49,406.12

Finding the Fourth Proportional to 89,690.66, 123,774.98 and 49,406.12

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Solution

The fourth proportional to 89,690.66, 123,774.98 and 49,406.12 is: 68,181.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,690.66 : 123,774.98 = 49,406.12 : x
  2. Step 2: Convert to fraction form
    89,690.66/123,774.98 = 49,406.12/x
  3. Step 3: Cross multiply
    89,690.66x = 123,774.98 × 49,406.12
  4. Step 4: Simplify right side
    89,690.66x = 6,115,241,514.88
  5. Step 5: Solve for x
    x = 6,115,241,514.88/89,690.66
  6. Step 6: Final answer
    x = 68,181.48

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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.