Home / 89,782.07-123,898.26-51,542.54

Finding the Fourth Proportional to 89,782.07, 123,898.26 and 51,542.54

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Solution

The fourth proportional to 89,782.07, 123,898.26 and 51,542.54 is: 71,128.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,782.07 : 123,898.26 = 51,542.54 : x
  2. Step 2: Convert to fraction form
    89,782.07/123,898.26 = 51,542.54/x
  3. Step 3: Cross multiply
    89,782.07x = 123,898.26 × 51,542.54
  4. Step 4: Simplify right side
    89,782.07x = 6,386,030,402.49
  5. Step 5: Solve for x
    x = 6,386,030,402.49/89,782.07
  6. Step 6: Final answer
    x = 71,128.12

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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.