Home / 89,833.84-123,976.36-51,605.34

Finding the Fourth Proportional to 89,833.84, 123,976.36 and 51,605.34

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Solution

The fourth proportional to 89,833.84, 123,976.36 and 51,605.34 is: 71,218.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,833.84 : 123,976.36 = 51,605.34 : x
  2. Step 2: Convert to fraction form
    89,833.84/123,976.36 = 51,605.34/x
  3. Step 3: Cross multiply
    89,833.84x = 123,976.36 × 51,605.34
  4. Step 4: Simplify right side
    89,833.84x = 6,397,842,209.76
  5. Step 5: Solve for x
    x = 6,397,842,209.76/89,833.84
  6. Step 6: Final answer
    x = 71,218.62

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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.