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Finding the Fourth Proportional to 70,544.71, 105,820.31 and 17,954.65

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Solution

The fourth proportional to 70,544.71, 105,820.31 and 17,954.65 is: 26,932.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,544.71 : 105,820.31 = 17,954.65 : x
  2. Step 2: Convert to fraction form
    70,544.71/105,820.31 = 17,954.65/x
  3. Step 3: Cross multiply
    70,544.71x = 105,820.31 × 17,954.65
  4. Step 4: Simplify right side
    70,544.71x = 1,899,966,628.94
  5. Step 5: Solve for x
    x = 1,899,966,628.94/70,544.71
  6. Step 6: Final answer
    x = 26,932.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.