Home / 45,838.72-68,754.24-18,129.28

Finding the Fourth Proportional to 45,838.72, 68,754.24 and 18,129.28

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Solution

The fourth proportional to 45,838.72, 68,754.24 and 18,129.28 is: 27,192.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,838.72 : 68,754.24 = 18,129.28 : x
  2. Step 2: Convert to fraction form
    45,838.72/68,754.24 = 18,129.28/x
  3. Step 3: Cross multiply
    45,838.72x = 68,754.24 × 18,129.28
  4. Step 4: Simplify right side
    45,838.72x = 1,246,464,868.15
  5. Step 5: Solve for x
    x = 1,246,464,868.15/45,838.72
  6. Step 6: Final answer
    x = 27,192.40

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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.