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Finding the Fourth Proportional to 81,674.90, 112,707.33 and 45,866.42

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Solution

The fourth proportional to 81,674.90, 112,707.33 and 45,866.42 is: 63,293.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,674.90 : 112,707.33 = 45,866.42 : x
  2. Step 2: Convert to fraction form
    81,674.90/112,707.33 = 45,866.42/x
  3. Step 3: Cross multiply
    81,674.90x = 112,707.33 × 45,866.42
  4. Step 4: Simplify right side
    81,674.90x = 5,169,481,171.32
  5. Step 5: Solve for x
    x = 5,169,481,171.32/81,674.90
  6. Step 6: Final answer
    x = 63,293.39

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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.