Home / 81,764.60-112,832.19-45,956.57

Finding the Fourth Proportional to 81,764.60, 112,832.19 and 45,956.57

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Solution

The fourth proportional to 81,764.60, 112,832.19 and 45,956.57 is: 63,418.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,764.60 : 112,832.19 = 45,956.57 : x
  2. Step 2: Convert to fraction form
    81,764.60/112,832.19 = 45,956.57/x
  3. Step 3: Cross multiply
    81,764.60x = 112,832.19 × 45,956.57
  4. Step 4: Simplify right side
    81,764.60x = 5,185,379,873.83
  5. Step 5: Solve for x
    x = 5,185,379,873.83/81,764.60
  6. Step 6: Final answer
    x = 63,418.40

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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.