Home / 85,240.68-117,636.12-47,515.20

Finding the Fourth Proportional to 85,240.68, 117,636.12 and 47,515.20

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Solution

The fourth proportional to 85,240.68, 117,636.12 and 47,515.20 is: 65,573.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,240.68 : 117,636.12 = 47,515.20 : x
  2. Step 2: Convert to fraction form
    85,240.68/117,636.12 = 47,515.20/x
  3. Step 3: Cross multiply
    85,240.68x = 117,636.12 × 47,515.20
  4. Step 4: Simplify right side
    85,240.68x = 5,589,503,769.02
  5. Step 5: Solve for x
    x = 5,589,503,769.02/85,240.68
  6. Step 6: Final answer
    x = 65,573.20

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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.