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Finding the Fourth Proportional to 84,980.34, 127,470.78 and 22,650.84

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Solution

The fourth proportional to 84,980.34, 127,470.78 and 22,650.84 is: 33,976.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,980.34 : 127,470.78 = 22,650.84 : x
  2. Step 2: Convert to fraction form
    84,980.34/127,470.78 = 22,650.84/x
  3. Step 3: Cross multiply
    84,980.34x = 127,470.78 × 22,650.84
  4. Step 4: Simplify right side
    84,980.34x = 2,887,320,242.46
  5. Step 5: Solve for x
    x = 2,887,320,242.46/84,980.34
  6. Step 6: Final answer
    x = 33,976.33

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1.5x scale

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.