Home / 85,346.20-117,758.88-49,515.44

Finding the Fourth Proportional to 85,346.20, 117,758.88 and 49,515.44

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Solution

The fourth proportional to 85,346.20, 117,758.88 and 49,515.44 is: 68,320.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,346.20 : 117,758.88 = 49,515.44 : x
  2. Step 2: Convert to fraction form
    85,346.20/117,758.88 = 49,515.44/x
  3. Step 3: Cross multiply
    85,346.20x = 117,758.88 × 49,515.44
  4. Step 4: Simplify right side
    85,346.20x = 5,830,882,757.11
  5. Step 5: Solve for x
    x = 5,830,882,757.11/85,346.20
  6. Step 6: Final answer
    x = 68,320.36

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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.