Home / 70,819.29-97,708.56-40,187.31

Finding the Fourth Proportional to 70,819.29, 97,708.56 and 40,187.31

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Solution

The fourth proportional to 70,819.29, 97,708.56 and 40,187.31 is: 55,445.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,819.29 : 97,708.56 = 40,187.31 : x
  2. Step 2: Convert to fraction form
    70,819.29/97,708.56 = 40,187.31/x
  3. Step 3: Cross multiply
    70,819.29x = 97,708.56 × 40,187.31
  4. Step 4: Simplify right side
    70,819.29x = 3,926,644,190.37
  5. Step 5: Solve for x
    x = 3,926,644,190.37/70,819.29
  6. Step 6: Final answer
    x = 55,445.97

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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.