Home / 45,531.32-68,280.57-19,238.11

Finding the Fourth Proportional to 45,531.32, 68,280.57 and 19,238.11

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Solution

The fourth proportional to 45,531.32, 68,280.57 and 19,238.11 is: 28,850.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,531.32 : 68,280.57 = 19,238.11 : x
  2. Step 2: Convert to fraction form
    45,531.32/68,280.57 = 19,238.11/x
  3. Step 3: Cross multiply
    45,531.32x = 68,280.57 × 19,238.11
  4. Step 4: Simplify right side
    45,531.32x = 1,313,588,945.82
  5. Step 5: Solve for x
    x = 1,313,588,945.82/45,531.32
  6. Step 6: Final answer
    x = 28,850.23

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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.