Home / 76,815.72-106,001.52-43,279.56

Finding the Fourth Proportional to 76,815.72, 106,001.52 and 43,279.56

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Solution

The fourth proportional to 76,815.72, 106,001.52 and 43,279.56 is: 59,723.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,815.72 : 106,001.52 = 43,279.56 : x
  2. Step 2: Convert to fraction form
    76,815.72/106,001.52 = 43,279.56/x
  3. Step 3: Cross multiply
    76,815.72x = 106,001.52 × 43,279.56
  4. Step 4: Simplify right side
    76,815.72x = 4,587,699,144.93
  5. Step 5: Solve for x
    x = 4,587,699,144.93/76,815.72
  6. Step 6: Final answer
    x = 59,723.44

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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.