Home / 78,334.92-117,522.36-25,744.86

Finding the Fourth Proportional to 78,334.92, 117,522.36 and 25,744.86

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Solution

The fourth proportional to 78,334.92, 117,522.36 and 25,744.86 is: 38,623.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,334.92 : 117,522.36 = 25,744.86 : x
  2. Step 2: Convert to fraction form
    78,334.92/117,522.36 = 25,744.86/x
  3. Step 3: Cross multiply
    78,334.92x = 117,522.36 × 25,744.86
  4. Step 4: Simplify right side
    78,334.92x = 3,025,596,705.07
  5. Step 5: Solve for x
    x = 3,025,596,705.07/78,334.92
  6. Step 6: Final answer
    x = 38,623.86

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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.