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Finding the Fourth Proportional to 86,609.78, 119,519.22 and 48,883.76

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Solution

The fourth proportional to 86,609.78, 119,519.22 and 48,883.76 is: 67,458.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,609.78 : 119,519.22 = 48,883.76 : x
  2. Step 2: Convert to fraction form
    86,609.78/119,519.22 = 48,883.76/x
  3. Step 3: Cross multiply
    86,609.78x = 119,519.22 × 48,883.76
  4. Step 4: Simplify right side
    86,609.78x = 5,842,548,865.87
  5. Step 5: Solve for x
    x = 5,842,548,865.87/86,609.78
  6. Step 6: Final answer
    x = 67,458.30

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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.