Home / 78,522.05-117,738.32-53,592.28

Finding the Fourth Proportional to 78,522.05, 117,738.32 and 53,592.28

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Solution

The fourth proportional to 78,522.05, 117,738.32 and 53,592.28 is: 80,357.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,522.05 : 117,738.32 = 53,592.28 : x
  2. Step 2: Convert to fraction form
    78,522.05/117,738.32 = 53,592.28/x
  3. Step 3: Cross multiply
    78,522.05x = 117,738.32 × 53,592.28
  4. Step 4: Simplify right side
    78,522.05x = 6,309,864,449.86
  5. Step 5: Solve for x
    x = 6,309,864,449.86/78,522.05
  6. Step 6: Final answer
    x = 80,357.86

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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.