Home / 89,212.08-123,103.80-51,498.48

Finding the Fourth Proportional to 89,212.08, 123,103.80 and 51,498.48

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Solution

The fourth proportional to 89,212.08, 123,103.80 and 51,498.48 is: 71,062.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,212.08 : 123,103.80 = 51,498.48 : x
  2. Step 2: Convert to fraction form
    89,212.08/123,103.80 = 51,498.48/x
  3. Step 3: Cross multiply
    89,212.08x = 123,103.80 × 51,498.48
  4. Step 4: Simplify right side
    89,212.08x = 6,339,658,582.22
  5. Step 5: Solve for x
    x = 6,339,658,582.22/89,212.08
  6. Step 6: Final answer
    x = 71,062.78

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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.