Home / 90,928.29-136,392.45-27,748.75

Finding the Fourth Proportional to 90,928.29, 136,392.45 and 27,748.75

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Solution

The fourth proportional to 90,928.29, 136,392.45 and 27,748.75 is: 41,623.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,928.29 : 136,392.45 = 27,748.75 : x
  2. Step 2: Convert to fraction form
    90,928.29/136,392.45 = 27,748.75/x
  3. Step 3: Cross multiply
    90,928.29x = 136,392.45 × 27,748.75
  4. Step 4: Simplify right side
    90,928.29x = 3,784,719,996.94
  5. Step 5: Solve for x
    x = 3,784,719,996.94/90,928.29
  6. Step 6: Final answer
    x = 41,623.13

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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.