Home / 89,221.14-123,060.63-75,771.09

Finding the Fourth Proportional to 89,221.14, 123,060.63 and 75,771.09

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Solution

The fourth proportional to 89,221.14, 123,060.63 and 75,771.09 is: 104,509.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,221.14 : 123,060.63 = 75,771.09 : x
  2. Step 2: Convert to fraction form
    89,221.14/123,060.63 = 75,771.09/x
  3. Step 3: Cross multiply
    89,221.14x = 123,060.63 × 75,771.09
  4. Step 4: Simplify right side
    89,221.14x = 9,324,438,071.19
  5. Step 5: Solve for x
    x = 9,324,438,071.19/89,221.14
  6. Step 6: Final answer
    x = 104,509.29

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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.