Home / 90,845.91-136,275.80-27,671.38

Finding the Fourth Proportional to 90,845.91, 136,275.80 and 27,671.38

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Solution

The fourth proportional to 90,845.91, 136,275.80 and 27,671.38 is: 41,509.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,845.91 : 136,275.80 = 27,671.38 : x
  2. Step 2: Convert to fraction form
    90,845.91/136,275.80 = 27,671.38/x
  3. Step 3: Cross multiply
    90,845.91x = 136,275.80 × 27,671.38
  4. Step 4: Simplify right side
    90,845.91x = 3,770,938,967.56
  5. Step 5: Solve for x
    x = 3,770,938,967.56/90,845.91
  6. Step 6: Final answer
    x = 41,509.18

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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.