Home / 90,623.89-135,991.97-52,691.01

Finding the Fourth Proportional to 90,623.89, 135,991.97 and 52,691.01

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Solution

The fourth proportional to 90,623.89, 135,991.97 and 52,691.01 is: 79,069.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,623.89 : 135,991.97 = 52,691.01 : x
  2. Step 2: Convert to fraction form
    90,623.89/135,991.97 = 52,691.01/x
  3. Step 3: Cross multiply
    90,623.89x = 135,991.97 × 52,691.01
  4. Step 4: Simplify right side
    90,623.89x = 7,165,554,251.19
  5. Step 5: Solve for x
    x = 7,165,554,251.19/90,623.89
  6. Step 6: Final answer
    x = 79,069.15

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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.