Home / 89,231.08-123,149.18-53,421.06

Finding the Fourth Proportional to 89,231.08, 123,149.18 and 53,421.06

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Solution

The fourth proportional to 89,231.08, 123,149.18 and 53,421.06 is: 73,727.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,231.08 : 123,149.18 = 53,421.06 : x
  2. Step 2: Convert to fraction form
    89,231.08/123,149.18 = 53,421.06/x
  3. Step 3: Cross multiply
    89,231.08x = 123,149.18 × 53,421.06
  4. Step 4: Simplify right side
    89,231.08x = 6,578,759,733.73
  5. Step 5: Solve for x
    x = 6,578,759,733.73/89,231.08
  6. Step 6: Final answer
    x = 73,727.22

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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.