Home / 85,379.38-117,799.95-55,166.02

Finding the Fourth Proportional to 85,379.38, 117,799.95 and 55,166.02

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Solution

The fourth proportional to 85,379.38, 117,799.95 and 55,166.02 is: 76,113.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,379.38 : 117,799.95 = 55,166.02 : x
  2. Step 2: Convert to fraction form
    85,379.38/117,799.95 = 55,166.02/x
  3. Step 3: Cross multiply
    85,379.38x = 117,799.95 × 55,166.02
  4. Step 4: Simplify right side
    85,379.38x = 6,498,554,397.70
  5. Step 5: Solve for x
    x = 6,498,554,397.70/85,379.38
  6. Step 6: Final answer
    x = 76,113.86

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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.