Home / 85,863.56-118,503.77-47,631.60

Finding the Fourth Proportional to 85,863.56, 118,503.77 and 47,631.60

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Solution

The fourth proportional to 85,863.56, 118,503.77 and 47,631.60 is: 65,738.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,863.56 : 118,503.77 = 47,631.60 : x
  2. Step 2: Convert to fraction form
    85,863.56/118,503.77 = 47,631.60/x
  3. Step 3: Cross multiply
    85,863.56x = 118,503.77 × 47,631.60
  4. Step 4: Simplify right side
    85,863.56x = 5,644,523,932.97
  5. Step 5: Solve for x
    x = 5,644,523,932.97/85,863.56
  6. Step 6: Final answer
    x = 65,738.30

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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.