Home / 68,939.10-95,133.52-42,126.48

Finding the Fourth Proportional to 68,939.10, 95,133.52 and 42,126.48

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Solution

The fourth proportional to 68,939.10, 95,133.52 and 42,126.48 is: 58,133.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,939.10 : 95,133.52 = 42,126.48 : x
  2. Step 2: Convert to fraction form
    68,939.10/95,133.52 = 42,126.48/x
  3. Step 3: Cross multiply
    68,939.10x = 95,133.52 × 42,126.48
  4. Step 4: Simplify right side
    68,939.10x = 4,007,640,327.61
  5. Step 5: Solve for x
    x = 4,007,640,327.61/68,939.10
  6. Step 6: Final answer
    x = 58,133.05

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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.