Home / 89,751.52-123,857.58-51,508.02

Finding the Fourth Proportional to 89,751.52, 123,857.58 and 51,508.02

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Solution

The fourth proportional to 89,751.52, 123,857.58 and 51,508.02 is: 71,081.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,751.52 : 123,857.58 = 51,508.02 : x
  2. Step 2: Convert to fraction form
    89,751.52/123,857.58 = 51,508.02/x
  3. Step 3: Cross multiply
    89,751.52x = 123,857.58 × 51,508.02
  4. Step 4: Simplify right side
    89,751.52x = 6,379,658,707.79
  5. Step 5: Solve for x
    x = 6,379,658,707.79/89,751.52
  6. Step 6: Final answer
    x = 71,081.34

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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.