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Finding the Fourth Proportional to 86,443, 119,291.82 and 48,717.88

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Solution

The fourth proportional to 86,443, 119,291.82 and 48,717.88 is: 67,230.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,443 : 119,291.82 = 48,717.88 : x
  2. Step 2: Convert to fraction form
    86,443/119,291.82 = 48,717.88/x
  3. Step 3: Cross multiply
    86,443x = 119,291.82 × 48,717.88
  4. Step 4: Simplify right side
    86,443x = 5,811,644,571.74
  5. Step 5: Solve for x
    x = 5,811,644,571.74/86,443
  6. Step 6: Final answer
    x = 67,230.94

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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.