Home / 71,511.45-107,267.82-18,203.49

Finding the Fourth Proportional to 71,511.45, 107,267.82 and 18,203.49

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Solution

The fourth proportional to 71,511.45, 107,267.82 and 18,203.49 is: 27,305.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,511.45 : 107,267.82 = 18,203.49 : x
  2. Step 2: Convert to fraction form
    71,511.45/107,267.82 = 18,203.49/x
  3. Step 3: Cross multiply
    71,511.45x = 107,267.82 × 18,203.49
  4. Step 4: Simplify right side
    71,511.45x = 1,952,648,688.69
  5. Step 5: Solve for x
    x = 1,952,648,688.69/71,511.45
  6. Step 6: Final answer
    x = 27,305.40

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1.5x scale

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.