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Finding the Fourth Proportional to 86,630.96, 119,550.71 and 48,905.21

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Solution

The fourth proportional to 86,630.96, 119,550.71 and 48,905.21 is: 67,489.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,630.96 : 119,550.71 = 48,905.21 : x
  2. Step 2: Convert to fraction form
    86,630.96/119,550.71 = 48,905.21/x
  3. Step 3: Cross multiply
    86,630.96x = 119,550.71 × 48,905.21
  4. Step 4: Simplify right side
    86,630.96x = 5,846,652,333.67
  5. Step 5: Solve for x
    x = 5,846,652,333.67/86,630.96
  6. Step 6: Final answer
    x = 67,489.18

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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.