Home / 71,896.18-99,217.38-39,631.96

Finding the Fourth Proportional to 71,896.18, 99,217.38 and 39,631.96

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Solution

The fourth proportional to 71,896.18, 99,217.38 and 39,631.96 is: 54,692.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,896.18 : 99,217.38 = 39,631.96 : x
  2. Step 2: Convert to fraction form
    71,896.18/99,217.38 = 39,631.96/x
  3. Step 3: Cross multiply
    71,896.18x = 99,217.38 × 39,631.96
  4. Step 4: Simplify right side
    71,896.18x = 3,932,179,235.46
  5. Step 5: Solve for x
    x = 3,932,179,235.46/71,896.18
  6. Step 6: Final answer
    x = 54,692.46

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1.5x scale

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.