Home / 85,036.59-117,512.33-63,778.95

Finding the Fourth Proportional to 85,036.59, 117,512.33 and 63,778.95

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Solution

The fourth proportional to 85,036.59, 117,512.33 and 63,778.95 is: 88,136.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,036.59 : 117,512.33 = 63,778.95 : x
  2. Step 2: Convert to fraction form
    85,036.59/117,512.33 = 63,778.95/x
  3. Step 3: Cross multiply
    85,036.59x = 117,512.33 × 63,778.95
  4. Step 4: Simplify right side
    85,036.59x = 7,494,813,019.45
  5. Step 5: Solve for x
    x = 7,494,813,019.45/85,036.59
  6. Step 6: Final answer
    x = 88,136.33

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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.