Home / 54,172.40-81,253.13-16,722.32

Finding the Fourth Proportional to 54,172.40, 81,253.13 and 16,722.32

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Solution

The fourth proportional to 54,172.40, 81,253.13 and 16,722.32 is: 25,081.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,172.40 : 81,253.13 = 16,722.32 : x
  2. Step 2: Convert to fraction form
    54,172.40/81,253.13 = 16,722.32/x
  3. Step 3: Cross multiply
    54,172.40x = 81,253.13 × 16,722.32
  4. Step 4: Simplify right side
    54,172.40x = 1,358,740,350.98
  5. Step 5: Solve for x
    x = 1,358,740,350.98/54,172.40
  6. Step 6: Final answer
    x = 25,081.78

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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.