Home / 78,524.85-117,742.52-53,595.08

Finding the Fourth Proportional to 78,524.85, 117,742.52 and 53,595.08

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Solution

The fourth proportional to 78,524.85, 117,742.52 and 53,595.08 is: 80,362.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,524.85 : 117,742.52 = 53,595.08 : x
  2. Step 2: Convert to fraction form
    78,524.85/117,742.52 = 53,595.08/x
  3. Step 3: Cross multiply
    78,524.85x = 117,742.52 × 53,595.08
  4. Step 4: Simplify right side
    78,524.85x = 6,310,419,765.61
  5. Step 5: Solve for x
    x = 6,310,419,765.61/78,524.85
  6. Step 6: Final answer
    x = 80,362.07

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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.