Home / 71,741.85-99,003.27-39,478.43

Finding the Fourth Proportional to 71,741.85, 99,003.27 and 39,478.43

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Solution

The fourth proportional to 71,741.85, 99,003.27 and 39,478.43 is: 54,479.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,741.85 : 99,003.27 = 39,478.43 : x
  2. Step 2: Convert to fraction form
    71,741.85/99,003.27 = 39,478.43/x
  3. Step 3: Cross multiply
    71,741.85x = 99,003.27 × 39,478.43
  4. Step 4: Simplify right side
    71,741.85x = 3,908,493,664.47
  5. Step 5: Solve for x
    x = 3,908,493,664.47/71,741.85
  6. Step 6: Final answer
    x = 54,479.97

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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.