Home / 84,738.43-127,107.08-21,558

Finding the Fourth Proportional to 84,738.43, 127,107.08 and 21,558

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Solution

The fourth proportional to 84,738.43, 127,107.08 and 21,558 is: 32,336.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,738.43 : 127,107.08 = 21,558 : x
  2. Step 2: Convert to fraction form
    84,738.43/127,107.08 = 21,558/x
  3. Step 3: Cross multiply
    84,738.43x = 127,107.08 × 21,558
  4. Step 4: Simplify right side
    84,738.43x = 2,740,174,430.64
  5. Step 5: Solve for x
    x = 2,740,174,430.64/84,738.43
  6. Step 6: Final answer
    x = 32,336.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.