Home / 54,340.74-81,511.16-43,761.15

Finding the Fourth Proportional to 54,340.74, 81,511.16 and 43,761.15

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Solution

The fourth proportional to 54,340.74, 81,511.16 and 43,761.15 is: 65,641.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,340.74 : 81,511.16 = 43,761.15 : x
  2. Step 2: Convert to fraction form
    54,340.74/81,511.16 = 43,761.15/x
  3. Step 3: Cross multiply
    54,340.74x = 81,511.16 × 43,761.15
  4. Step 4: Simplify right side
    54,340.74x = 3,567,021,880.63
  5. Step 5: Solve for x
    x = 3,567,021,880.63/54,340.74
  6. Step 6: Final answer
    x = 65,641.76

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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.