Home / 71,819.46-99,110.84-39,995.88

Finding the Fourth Proportional to 71,819.46, 99,110.84 and 39,995.88

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Solution

The fourth proportional to 71,819.46, 99,110.84 and 39,995.88 is: 55,194.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,819.46 : 99,110.84 = 39,995.88 : x
  2. Step 2: Convert to fraction form
    71,819.46/99,110.84 = 39,995.88/x
  3. Step 3: Cross multiply
    71,819.46x = 99,110.84 × 39,995.88
  4. Step 4: Simplify right side
    71,819.46x = 3,964,025,263.34
  5. Step 5: Solve for x
    x = 3,964,025,263.34/71,819.46
  6. Step 6: Final answer
    x = 55,194.31

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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.