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Finding the Fourth Proportional to 81,260.88, 112,150.40 and 45,452.88

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Solution

The fourth proportional to 81,260.88, 112,150.40 and 45,452.88 is: 62,730.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,260.88 : 112,150.40 = 45,452.88 : x
  2. Step 2: Convert to fraction form
    81,260.88/112,150.40 = 45,452.88/x
  3. Step 3: Cross multiply
    81,260.88x = 112,150.40 × 45,452.88
  4. Step 4: Simplify right side
    81,260.88x = 5,097,558,673.15
  5. Step 5: Solve for x
    x = 5,097,558,673.15/81,260.88
  6. Step 6: Final answer
    x = 62,730.78

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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.