Home / 68,548.38-102,784.36-21,150.01

Finding the Fourth Proportional to 68,548.38, 102,784.36 and 21,150.01

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Solution

The fourth proportional to 68,548.38, 102,784.36 and 21,150.01 is: 31,713.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,548.38 : 102,784.36 = 21,150.01 : x
  2. Step 2: Convert to fraction form
    68,548.38/102,784.36 = 21,150.01/x
  3. Step 3: Cross multiply
    68,548.38x = 102,784.36 × 21,150.01
  4. Step 4: Simplify right side
    68,548.38x = 2,173,890,357.11
  5. Step 5: Solve for x
    x = 2,173,890,357.11/68,548.38
  6. Step 6: Final answer
    x = 31,713.23

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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.