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Finding the Fourth Proportional to 81,377.83, 112,226.46 and 55,839.14

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Solution

The fourth proportional to 81,377.83, 112,226.46 and 55,839.14 is: 77,006.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,377.83 : 112,226.46 = 55,839.14 : x
  2. Step 2: Convert to fraction form
    81,377.83/112,226.46 = 55,839.14/x
  3. Step 3: Cross multiply
    81,377.83x = 112,226.46 × 55,839.14
  4. Step 4: Simplify right side
    81,377.83x = 6,266,628,450.51
  5. Step 5: Solve for x
    x = 6,266,628,450.51/81,377.83
  6. Step 6: Final answer
    x = 77,006.59

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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.