Home / 215,824.38-323,724.72-66,064.53

Finding the Fourth Proportional to 215,824.38, 323,724.72 and 66,064.53

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Solution

The fourth proportional to 215,824.38, 323,724.72 and 66,064.53 is: 99,093.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,824.38 : 323,724.72 = 66,064.53 : x
  2. Step 2: Convert to fraction form
    215,824.38/323,724.72 = 66,064.53/x
  3. Step 3: Cross multiply
    215,824.38x = 323,724.72 × 66,064.53
  4. Step 4: Simplify right side
    215,824.38x = 21,386,721,476.18
  5. Step 5: Solve for x
    x = 21,386,721,476.18/215,824.38
  6. Step 6: Final answer
    x = 99,093.17

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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.