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Finding the Fourth Proportional to 81,653.56, 112,673.20 and 45,847.48

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Solution

The fourth proportional to 81,653.56, 112,673.20 and 45,847.48 is: 63,264.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,653.56 : 112,673.20 = 45,847.48 : x
  2. Step 2: Convert to fraction form
    81,653.56/112,673.20 = 45,847.48/x
  3. Step 3: Cross multiply
    81,653.56x = 112,673.20 × 45,847.48
  4. Step 4: Simplify right side
    81,653.56x = 5,165,782,283.54
  5. Step 5: Solve for x
    x = 5,165,782,283.54/81,653.56
  6. Step 6: Final answer
    x = 63,264.63

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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.