Home / 54,437.24-81,634.86-21,152.92

Finding the Fourth Proportional to 54,437.24, 81,634.86 and 21,152.92

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Solution

The fourth proportional to 54,437.24, 81,634.86 and 21,152.92 is: 31,721.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,437.24 : 81,634.86 = 21,152.92 : x
  2. Step 2: Convert to fraction form
    54,437.24/81,634.86 = 21,152.92/x
  3. Step 3: Cross multiply
    54,437.24x = 81,634.86 × 21,152.92
  4. Step 4: Simplify right side
    54,437.24x = 1,726,815,662.79
  5. Step 5: Solve for x
    x = 1,726,815,662.79/54,437.24
  6. Step 6: Final answer
    x = 31,721.22

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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.