Home / 215,328.38-322,995.30-75,087

Finding the Fourth Proportional to 215,328.38, 322,995.30 and 75,087

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Solution

The fourth proportional to 215,328.38, 322,995.30 and 75,087 is: 112,631.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,328.38 : 322,995.30 = 75,087 : x
  2. Step 2: Convert to fraction form
    215,328.38/322,995.30 = 75,087/x
  3. Step 3: Cross multiply
    215,328.38x = 322,995.30 × 75,087
  4. Step 4: Simplify right side
    215,328.38x = 24,252,747,809.52
  5. Step 5: Solve for x
    x = 24,252,747,809.52/215,328.38
  6. Step 6: Final answer
    x = 112,631.45

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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.