Home / 71,824.49-99,116.87-39,558.50

Finding the Fourth Proportional to 71,824.49, 99,116.87 and 39,558.50

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Solution

The fourth proportional to 71,824.49, 99,116.87 and 39,558.50 is: 54,590.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,824.49 : 99,116.87 = 39,558.50 : x
  2. Step 2: Convert to fraction form
    71,824.49/99,116.87 = 39,558.50/x
  3. Step 3: Cross multiply
    71,824.49x = 99,116.87 × 39,558.50
  4. Step 4: Simplify right side
    71,824.49x = 3,920,914,380.21
  5. Step 5: Solve for x
    x = 3,920,914,380.21/71,824.49
  6. Step 6: Final answer
    x = 54,590.21

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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.