Home / 71,824.32-99,119.16-39,996.18

Finding the Fourth Proportional to 71,824.32, 99,119.16 and 39,996.18

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Solution

The fourth proportional to 71,824.32, 99,119.16 and 39,996.18 is: 55,195.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,824.32 : 99,119.16 = 39,996.18 : x
  2. Step 2: Convert to fraction form
    71,824.32/99,119.16 = 39,996.18/x
  3. Step 3: Cross multiply
    71,824.32x = 99,119.16 × 39,996.18
  4. Step 4: Simplify right side
    71,824.32x = 3,964,387,764.81
  5. Step 5: Solve for x
    x = 3,964,387,764.81/71,824.32
  6. Step 6: Final answer
    x = 55,195.62

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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.