Home / 54,336.12-81,511.80-51,348.12

Finding the Fourth Proportional to 54,336.12, 81,511.80 and 51,348.12

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Solution

The fourth proportional to 54,336.12, 81,511.80 and 51,348.12 is: 77,029.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,336.12 : 81,511.80 = 51,348.12 : x
  2. Step 2: Convert to fraction form
    54,336.12/81,511.80 = 51,348.12/x
  3. Step 3: Cross multiply
    54,336.12x = 81,511.80 × 51,348.12
  4. Step 4: Simplify right side
    54,336.12x = 4,185,477,687.82
  5. Step 5: Solve for x
    x = 4,185,477,687.82/54,336.12
  6. Step 6: Final answer
    x = 77,029.38

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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.