Home / 85,310.69-117,766.51-55,110.73

Finding the Fourth Proportional to 85,310.69, 117,766.51 and 55,110.73

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Solution

The fourth proportional to 85,310.69, 117,766.51 and 55,110.73 is: 76,077.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,310.69 : 117,766.51 = 55,110.73 : x
  2. Step 2: Convert to fraction form
    85,310.69/117,766.51 = 55,110.73/x
  3. Step 3: Cross multiply
    85,310.69x = 117,766.51 × 55,110.73
  4. Step 4: Simplify right side
    85,310.69x = 6,490,197,903.46
  5. Step 5: Solve for x
    x = 6,490,197,903.46/85,310.69
  6. Step 6: Final answer
    x = 76,077.19

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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.