Home / 51,631.41-71,242.87-30,407.79

Finding the Fourth Proportional to 51,631.41, 71,242.87 and 30,407.79

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Solution

The fourth proportional to 51,631.41, 71,242.87 and 30,407.79 is: 41,957.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,631.41 : 71,242.87 = 30,407.79 : x
  2. Step 2: Convert to fraction form
    51,631.41/71,242.87 = 30,407.79/x
  3. Step 3: Cross multiply
    51,631.41x = 71,242.87 × 30,407.79
  4. Step 4: Simplify right side
    51,631.41x = 2,166,338,229.96
  5. Step 5: Solve for x
    x = 2,166,338,229.96/51,631.41
  6. Step 6: Final answer
    x = 41,957.76

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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.