Home / 81,398.52-112,331.07-53,087.94

Finding the Fourth Proportional to 81,398.52, 112,331.07 and 53,087.94

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Solution

The fourth proportional to 81,398.52, 112,331.07 and 53,087.94 is: 73,262.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,398.52 : 112,331.07 = 53,087.94 : x
  2. Step 2: Convert to fraction form
    81,398.52/112,331.07 = 53,087.94/x
  3. Step 3: Cross multiply
    81,398.52x = 112,331.07 × 53,087.94
  4. Step 4: Simplify right side
    81,398.52x = 5,963,425,104.30
  5. Step 5: Solve for x
    x = 5,963,425,104.30/81,398.52
  6. Step 6: Final answer
    x = 73,262.08

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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.