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Finding the Fourth Proportional to 71,811.64, 99,085.56 and 43,500.88

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Solution

The fourth proportional to 71,811.64, 99,085.56 and 43,500.88 is: 60,022.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,811.64 : 99,085.56 = 43,500.88 : x
  2. Step 2: Convert to fraction form
    71,811.64/99,085.56 = 43,500.88/x
  3. Step 3: Cross multiply
    71,811.64x = 99,085.56 × 43,500.88
  4. Step 4: Simplify right side
    71,811.64x = 4,310,309,055.29
  5. Step 5: Solve for x
    x = 4,310,309,055.29/71,811.64
  6. Step 6: Final answer
    x = 60,022.43

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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.