Home / 89,777.31-123,881.03-51,538.52

Finding the Fourth Proportional to 89,777.31, 123,881.03 and 51,538.52

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Solution

The fourth proportional to 89,777.31, 123,881.03 and 51,538.52 is: 71,116.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,777.31 : 123,881.03 = 51,538.52 : x
  2. Step 2: Convert to fraction form
    89,777.31/123,881.03 = 51,538.52/x
  3. Step 3: Cross multiply
    89,777.31x = 123,881.03 × 51,538.52
  4. Step 4: Simplify right side
    89,777.31x = 6,384,645,123.13
  5. Step 5: Solve for x
    x = 6,384,645,123.13/89,777.31
  6. Step 6: Final answer
    x = 71,116.47

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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.