Home / 86,478.48-119,334.60-48,751.92

Finding the Fourth Proportional to 86,478.48, 119,334.60 and 48,751.92

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Solution

The fourth proportional to 86,478.48, 119,334.60 and 48,751.92 is: 67,274.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,478.48 : 119,334.60 = 48,751.92 : x
  2. Step 2: Convert to fraction form
    86,478.48/119,334.60 = 48,751.92/x
  3. Step 3: Cross multiply
    86,478.48x = 119,334.60 × 48,751.92
  4. Step 4: Simplify right side
    86,478.48x = 5,817,790,872.43
  5. Step 5: Solve for x
    x = 5,817,790,872.43/86,478.48
  6. Step 6: Final answer
    x = 67,274.43

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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.