Home / 89,250.60-123,172.08-51,015.80

Finding the Fourth Proportional to 89,250.60, 123,172.08 and 51,015.80

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Solution

The fourth proportional to 89,250.60, 123,172.08 and 51,015.80 is: 70,405.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,250.60 : 123,172.08 = 51,015.80 : x
  2. Step 2: Convert to fraction form
    89,250.60/123,172.08 = 51,015.80/x
  3. Step 3: Cross multiply
    89,250.60x = 123,172.08 × 51,015.80
  4. Step 4: Simplify right side
    89,250.60x = 6,283,722,198.86
  5. Step 5: Solve for x
    x = 6,283,722,198.86/89,250.60
  6. Step 6: Final answer
    x = 70,405.38

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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.