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Finding the Fourth Proportional to 86,786.40, 130,179.60 and 24,456.90

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Solution

The fourth proportional to 86,786.40, 130,179.60 and 24,456.90 is: 36,685.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,786.40 : 130,179.60 = 24,456.90 : x
  2. Step 2: Convert to fraction form
    86,786.40/130,179.60 = 24,456.90/x
  3. Step 3: Cross multiply
    86,786.40x = 130,179.60 × 24,456.90
  4. Step 4: Simplify right side
    86,786.40x = 3,183,789,459.24
  5. Step 5: Solve for x
    x = 3,183,789,459.24/86,786.40
  6. Step 6: Final answer
    x = 36,685.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.