Home / 84,389.31-126,536.58-28,199.81

Finding the Fourth Proportional to 84,389.31, 126,536.58 and 28,199.81

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Solution

The fourth proportional to 84,389.31, 126,536.58 and 28,199.81 is: 42,283.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,389.31 : 126,536.58 = 28,199.81 : x
  2. Step 2: Convert to fraction form
    84,389.31/126,536.58 = 28,199.81/x
  3. Step 3: Cross multiply
    84,389.31x = 126,536.58 × 28,199.81
  4. Step 4: Simplify right side
    84,389.31x = 3,568,307,830.39
  5. Step 5: Solve for x
    x = 3,568,307,830.39/84,389.31
  6. Step 6: Final answer
    x = 42,283.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.