Home / 89,862.60-134,729.10-50,431.80

Finding the Fourth Proportional to 89,862.60, 134,729.10 and 50,431.80

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Solution

The fourth proportional to 89,862.60, 134,729.10 and 50,431.80 is: 75,611.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,862.60 : 134,729.10 = 50,431.80 : x
  2. Step 2: Convert to fraction form
    89,862.60/134,729.10 = 50,431.80/x
  3. Step 3: Cross multiply
    89,862.60x = 134,729.10 × 50,431.80
  4. Step 4: Simplify right side
    89,862.60x = 6,794,631,025.38
  5. Step 5: Solve for x
    x = 6,794,631,025.38/89,862.60
  6. Step 6: Final answer
    x = 75,611.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.