Home / 56,277.30-84,420.42-18,837.57

Finding the Fourth Proportional to 56,277.30, 84,420.42 and 18,837.57

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Solution

The fourth proportional to 56,277.30, 84,420.42 and 18,837.57 is: 28,257.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,277.30 : 84,420.42 = 18,837.57 : x
  2. Step 2: Convert to fraction form
    56,277.30/84,420.42 = 18,837.57/x
  3. Step 3: Cross multiply
    56,277.30x = 84,420.42 × 18,837.57
  4. Step 4: Simplify right side
    56,277.30x = 1,590,275,571.18
  5. Step 5: Solve for x
    x = 1,590,275,571.18/56,277.30
  6. Step 6: Final answer
    x = 28,257.85

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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.