Home / 84,609.12-126,895.86-25,427.28

Finding the Fourth Proportional to 84,609.12, 126,895.86 and 25,427.28

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Solution

The fourth proportional to 84,609.12, 126,895.86 and 25,427.28 is: 38,135.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,609.12 : 126,895.86 = 25,427.28 : x
  2. Step 2: Convert to fraction form
    84,609.12/126,895.86 = 25,427.28/x
  3. Step 3: Cross multiply
    84,609.12x = 126,895.86 × 25,427.28
  4. Step 4: Simplify right side
    84,609.12x = 3,226,616,563.06
  5. Step 5: Solve for x
    x = 3,226,616,563.06/84,609.12
  6. Step 6: Final answer
    x = 38,135.56

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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.