Home / 85,258.68-117,658.04-49,450.20

Finding the Fourth Proportional to 85,258.68, 117,658.04 and 49,450.20

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Solution

The fourth proportional to 85,258.68, 117,658.04 and 49,450.20 is: 68,241.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,258.68 : 117,658.04 = 49,450.20 : x
  2. Step 2: Convert to fraction form
    85,258.68/117,658.04 = 49,450.20/x
  3. Step 3: Cross multiply
    85,258.68x = 117,658.04 × 49,450.20
  4. Step 4: Simplify right side
    85,258.68x = 5,818,213,609.61
  5. Step 5: Solve for x
    x = 5,818,213,609.61/85,258.68
  6. Step 6: Final answer
    x = 68,241.89

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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.