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Finding the Fourth Proportional to 92,380.97, 127,485.78 and 49,939.51

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Solution

The fourth proportional to 92,380.97, 127,485.78 and 49,939.51 is: 68,916.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,380.97 : 127,485.78 = 49,939.51 : x
  2. Step 2: Convert to fraction form
    92,380.97/127,485.78 = 49,939.51/x
  3. Step 3: Cross multiply
    92,380.97x = 127,485.78 × 49,939.51
  4. Step 4: Simplify right side
    92,380.97x = 6,366,577,385.17
  5. Step 5: Solve for x
    x = 6,366,577,385.17/92,380.97
  6. Step 6: Final answer
    x = 68,916.55

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1.5x scale

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.