Home / 89,529.60-123,544.80-51,289.30

Finding the Fourth Proportional to 89,529.60, 123,544.80 and 51,289.30

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Solution

The fourth proportional to 89,529.60, 123,544.80 and 51,289.30 is: 70,775.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,529.60 : 123,544.80 = 51,289.30 : x
  2. Step 2: Convert to fraction form
    89,529.60/123,544.80 = 51,289.30/x
  3. Step 3: Cross multiply
    89,529.60x = 123,544.80 × 51,289.30
  4. Step 4: Simplify right side
    89,529.60x = 6,336,526,310.64
  5. Step 5: Solve for x
    x = 6,336,526,310.64/89,529.60
  6. Step 6: Final answer
    x = 70,775.77

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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.