Home / 89,780.66-123,891.75-49,492.34

Finding the Fourth Proportional to 89,780.66, 123,891.75 and 49,492.34

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Solution

The fourth proportional to 89,780.66, 123,891.75 and 49,492.34 is: 68,296.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,780.66 : 123,891.75 = 49,492.34 : x
  2. Step 2: Convert to fraction form
    89,780.66/123,891.75 = 49,492.34/x
  3. Step 3: Cross multiply
    89,780.66x = 123,891.75 × 49,492.34
  4. Step 4: Simplify right side
    89,780.66x = 6,131,691,994.74
  5. Step 5: Solve for x
    x = 6,131,691,994.74/89,780.66
  6. Step 6: Final answer
    x = 68,296.36

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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.