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Finding the Fourth Proportional to 86,694, 119,647.46 and 48,970.68

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Solution

The fourth proportional to 86,694, 119,647.46 and 48,970.68 is: 67,585.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,694 : 119,647.46 = 48,970.68 : x
  2. Step 2: Convert to fraction form
    86,694/119,647.46 = 48,970.68/x
  3. Step 3: Cross multiply
    86,694x = 119,647.46 × 48,970.68
  4. Step 4: Simplify right side
    86,694x = 5,859,217,231.62
  5. Step 5: Solve for x
    x = 5,859,217,231.62/86,694
  6. Step 6: Final answer
    x = 67,585.04

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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.