Home / 85,880.12-118,515.76-51,883.88

Finding the Fourth Proportional to 85,880.12, 118,515.76 and 51,883.88

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Solution

The fourth proportional to 85,880.12, 118,515.76 and 51,883.88 is: 71,600.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,880.12 : 118,515.76 = 51,883.88 : x
  2. Step 2: Convert to fraction form
    85,880.12/118,515.76 = 51,883.88/x
  3. Step 3: Cross multiply
    85,880.12x = 118,515.76 × 51,883.88
  4. Step 4: Simplify right side
    85,880.12x = 6,149,057,469.95
  5. Step 5: Solve for x
    x = 6,149,057,469.95/85,880.12
  6. Step 6: Final answer
    x = 71,600.48

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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.