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Finding the Fourth Proportional to 81,012.84, 111,789.24 and 44,713.62

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Solution

The fourth proportional to 81,012.84, 111,789.24 and 44,713.62 is: 61,700.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,012.84 : 111,789.24 = 44,713.62 : x
  2. Step 2: Convert to fraction form
    81,012.84/111,789.24 = 44,713.62/x
  3. Step 3: Cross multiply
    81,012.84x = 111,789.24 × 44,713.62
  4. Step 4: Simplify right side
    81,012.84x = 4,998,501,178.24
  5. Step 5: Solve for x
    x = 4,998,501,178.24/81,012.84
  6. Step 6: Final answer
    x = 61,700.11

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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.