Home / 85,680.26-118,238.56-47,441.78

Finding the Fourth Proportional to 85,680.26, 118,238.56 and 47,441.78

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Solution

The fourth proportional to 85,680.26, 118,238.56 and 47,441.78 is: 65,469.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,680.26 : 118,238.56 = 47,441.78 : x
  2. Step 2: Convert to fraction form
    85,680.26/118,238.56 = 47,441.78/x
  3. Step 3: Cross multiply
    85,680.26x = 118,238.56 × 47,441.78
  4. Step 4: Simplify right side
    85,680.26x = 5,609,447,041.24
  5. Step 5: Solve for x
    x = 5,609,447,041.24/85,680.26
  6. Step 6: Final answer
    x = 65,469.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.