Home / 89,231.86-123,150.26-53,421.85

Finding the Fourth Proportional to 89,231.86, 123,150.26 and 53,421.85

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Solution

The fourth proportional to 89,231.86, 123,150.26 and 53,421.85 is: 73,728.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,231.86 : 123,150.26 = 53,421.85 : x
  2. Step 2: Convert to fraction form
    89,231.86/123,150.26 = 53,421.85/x
  3. Step 3: Cross multiply
    89,231.86x = 123,150.26 × 53,421.85
  4. Step 4: Simplify right side
    89,231.86x = 6,578,914,717.18
  5. Step 5: Solve for x
    x = 6,578,914,717.18/89,231.86
  6. Step 6: Final answer
    x = 73,728.32

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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.