Home / 78,524.72-117,725.14-39,060.32

Finding the Fourth Proportional to 78,524.72, 117,725.14 and 39,060.32

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Solution

The fourth proportional to 78,524.72, 117,725.14 and 39,060.32 is: 58,559.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,524.72 : 117,725.14 = 39,060.32 : x
  2. Step 2: Convert to fraction form
    78,524.72/117,725.14 = 39,060.32/x
  3. Step 3: Cross multiply
    78,524.72x = 117,725.14 × 39,060.32
  4. Step 4: Simplify right side
    78,524.72x = 4,598,381,640.44
  5. Step 5: Solve for x
    x = 4,598,381,640.44/78,524.72
  6. Step 6: Final answer
    x = 58,559.67

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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.