Home / 90,921.06-136,384.32-43,523.30

Finding the Fourth Proportional to 90,921.06, 136,384.32 and 43,523.30

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Solution

The fourth proportional to 90,921.06, 136,384.32 and 43,523.30 is: 65,286.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,921.06 : 136,384.32 = 43,523.30 : x
  2. Step 2: Convert to fraction form
    90,921.06/136,384.32 = 43,523.30/x
  3. Step 3: Cross multiply
    90,921.06x = 136,384.32 × 43,523.30
  4. Step 4: Simplify right side
    90,921.06x = 5,935,895,674.66
  5. Step 5: Solve for x
    x = 5,935,895,674.66/90,921.06
  6. Step 6: Final answer
    x = 65,286.26

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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.