Home / 85,089.18-117,414.58-49,290.70

Finding the Fourth Proportional to 85,089.18, 117,414.58 and 49,290.70

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Solution

The fourth proportional to 85,089.18, 117,414.58 and 49,290.70 is: 68,016.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,089.18 : 117,414.58 = 49,290.70 : x
  2. Step 2: Convert to fraction form
    85,089.18/117,414.58 = 49,290.70/x
  3. Step 3: Cross multiply
    85,089.18x = 117,414.58 × 49,290.70
  4. Step 4: Simplify right side
    85,089.18x = 5,787,446,838.41
  5. Step 5: Solve for x
    x = 5,787,446,838.41/85,089.18
  6. Step 6: Final answer
    x = 68,016.25

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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.