Home / 51,930.90-71,668.02-30,131.64

Finding the Fourth Proportional to 51,930.90, 71,668.02 and 30,131.64

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Solution

The fourth proportional to 51,930.90, 71,668.02 and 30,131.64 is: 41,583.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,930.90 : 71,668.02 = 30,131.64 : x
  2. Step 2: Convert to fraction form
    51,930.90/71,668.02 = 30,131.64/x
  3. Step 3: Cross multiply
    51,930.90x = 71,668.02 × 30,131.64
  4. Step 4: Simplify right side
    51,930.90x = 2,159,474,978.15
  5. Step 5: Solve for x
    x = 2,159,474,978.15/51,930.90
  6. Step 6: Final answer
    x = 41,583.62

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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.