Home / 51,909.66-71,551.20-40,559.36

Finding the Fourth Proportional to 51,909.66, 71,551.20 and 40,559.36

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Solution

The fourth proportional to 51,909.66, 71,551.20 and 40,559.36 is: 55,906.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,909.66 : 71,551.20 = 40,559.36 : x
  2. Step 2: Convert to fraction form
    51,909.66/71,551.20 = 40,559.36/x
  3. Step 3: Cross multiply
    51,909.66x = 71,551.20 × 40,559.36
  4. Step 4: Simplify right side
    51,909.66x = 2,902,070,879.23
  5. Step 5: Solve for x
    x = 2,902,070,879.23/51,909.66
  6. Step 6: Final answer
    x = 55,906.18

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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.