Home / 54,299.89-81,429.85-18,752.16

Finding the Fourth Proportional to 54,299.89, 81,429.85 and 18,752.16

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Solution

The fourth proportional to 54,299.89, 81,429.85 and 18,752.16 is: 28,121.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,299.89 : 81,429.85 = 18,752.16 : x
  2. Step 2: Convert to fraction form
    54,299.89/81,429.85 = 18,752.16/x
  3. Step 3: Cross multiply
    54,299.89x = 81,429.85 × 18,752.16
  4. Step 4: Simplify right side
    54,299.89x = 1,526,985,575.98
  5. Step 5: Solve for x
    x = 1,526,985,575.98/54,299.89
  6. Step 6: Final answer
    x = 28,121.34

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1.5x scale

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.