Home / 81,769.05-112,842.36-45,956.97

Finding the Fourth Proportional to 81,769.05, 112,842.36 and 45,956.97

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Solution

The fourth proportional to 81,769.05, 112,842.36 and 45,956.97 is: 63,421.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,769.05 : 112,842.36 = 45,956.97 : x
  2. Step 2: Convert to fraction form
    81,769.05/112,842.36 = 45,956.97/x
  3. Step 3: Cross multiply
    81,769.05x = 112,842.36 × 45,956.97
  4. Step 4: Simplify right side
    81,769.05x = 5,185,892,953.25
  5. Step 5: Solve for x
    x = 5,185,892,953.25/81,769.05
  6. Step 6: Final answer
    x = 63,421.22

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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.