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Finding the Fourth Proportional to 127,392, 191,088 and 49,568

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Solution

The fourth proportional to 127,392, 191,088 and 49,568 is: 74,352

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,392 : 191,088 = 49,568 : x
  2. Step 2: Convert to fraction form
    127,392/191,088 = 49,568/x
  3. Step 3: Cross multiply
    127,392x = 191,088 × 49,568
  4. Step 4: Simplify right side
    127,392x = 9,471,849,984
  5. Step 5: Solve for x
    x = 9,471,849,984/127,392
  6. Step 6: Final answer
    x = 74,352

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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.