Home / 51,668.31-77,507.37-20,080.82

Finding the Fourth Proportional to 51,668.31, 77,507.37 and 20,080.82

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Solution

The fourth proportional to 51,668.31, 77,507.37 and 20,080.82 is: 30,123.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,668.31 : 77,507.37 = 20,080.82 : x
  2. Step 2: Convert to fraction form
    51,668.31/77,507.37 = 20,080.82/x
  3. Step 3: Cross multiply
    51,668.31x = 77,507.37 × 20,080.82
  4. Step 4: Simplify right side
    51,668.31x = 1,556,411,158.11
  5. Step 5: Solve for x
    x = 1,556,411,158.11/51,668.31
  6. Step 6: Final answer
    x = 30,123.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.