Home / 78,185.25-116,982.63-48,463.92

Finding the Fourth Proportional to 78,185.25, 116,982.63 and 48,463.92

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Solution

The fourth proportional to 78,185.25, 116,982.63 and 48,463.92 is: 72,512.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,185.25 : 116,982.63 = 48,463.92 : x
  2. Step 2: Convert to fraction form
    78,185.25/116,982.63 = 48,463.92/x
  3. Step 3: Cross multiply
    78,185.25x = 116,982.63 × 48,463.92
  4. Step 4: Simplify right side
    78,185.25x = 5,669,436,821.71
  5. Step 5: Solve for x
    x = 5,669,436,821.71/78,185.25
  6. Step 6: Final answer
    x = 72,512.87

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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.