Home / 85,296.12-117,708.84-47,572.80

Finding the Fourth Proportional to 85,296.12, 117,708.84 and 47,572.80

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Solution

The fourth proportional to 85,296.12, 117,708.84 and 47,572.80 is: 65,650.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,296.12 : 117,708.84 = 47,572.80 : x
  2. Step 2: Convert to fraction form
    85,296.12/117,708.84 = 47,572.80/x
  3. Step 3: Cross multiply
    85,296.12x = 117,708.84 × 47,572.80
  4. Step 4: Simplify right side
    85,296.12x = 5,599,739,103.55
  5. Step 5: Solve for x
    x = 5,599,739,103.55/85,296.12
  6. Step 6: Final answer
    x = 65,650.57

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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.