Home / 81,349.73-112,261.76-45,540.03

Finding the Fourth Proportional to 81,349.73, 112,261.76 and 45,540.03

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Solution

The fourth proportional to 81,349.73, 112,261.76 and 45,540.03 is: 62,844.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,349.73 : 112,261.76 = 45,540.03 : x
  2. Step 2: Convert to fraction form
    81,349.73/112,261.76 = 45,540.03/x
  3. Step 3: Cross multiply
    81,349.73x = 112,261.76 × 45,540.03
  4. Step 4: Simplify right side
    81,349.73x = 5,112,403,690.55
  5. Step 5: Solve for x
    x = 5,112,403,690.55/81,349.73
  6. Step 6: Final answer
    x = 62,844.76

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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.