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Finding the Fourth Proportional to 81,450.60, 112,394.02 and 47,462.76

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Solution

The fourth proportional to 81,450.60, 112,394.02 and 47,462.76 is: 65,494.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,450.60 : 112,394.02 = 47,462.76 : x
  2. Step 2: Convert to fraction form
    81,450.60/112,394.02 = 47,462.76/x
  3. Step 3: Cross multiply
    81,450.60x = 112,394.02 × 47,462.76
  4. Step 4: Simplify right side
    81,450.60x = 5,334,530,396.70
  5. Step 5: Solve for x
    x = 5,334,530,396.70/81,450.60
  6. Step 6: Final answer
    x = 65,494.06

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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.