Home / 54,279.30-81,415.05-16,838.40

Finding the Fourth Proportional to 54,279.30, 81,415.05 and 16,838.40

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Solution

The fourth proportional to 54,279.30, 81,415.05 and 16,838.40 is: 25,256.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,279.30 : 81,415.05 = 16,838.40 : x
  2. Step 2: Convert to fraction form
    54,279.30/81,415.05 = 16,838.40/x
  3. Step 3: Cross multiply
    54,279.30x = 81,415.05 × 16,838.40
  4. Step 4: Simplify right side
    54,279.30x = 1,370,899,093.73
  5. Step 5: Solve for x
    x = 1,370,899,093.73/54,279.30
  6. Step 6: Final answer
    x = 25,256.39

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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.