Home / 54,445.50-81,673.41-21,168.12

Finding the Fourth Proportional to 54,445.50, 81,673.41 and 21,168.12

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Solution

The fourth proportional to 54,445.50, 81,673.41 and 21,168.12 is: 31,754.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,445.50 : 81,673.41 = 21,168.12 : x
  2. Step 2: Convert to fraction form
    54,445.50/81,673.41 = 21,168.12/x
  3. Step 3: Cross multiply
    54,445.50x = 81,673.41 × 21,168.12
  4. Step 4: Simplify right side
    54,445.50x = 1,728,872,543.69
  5. Step 5: Solve for x
    x = 1,728,872,543.69/54,445.50
  6. Step 6: Final answer
    x = 31,754.19

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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.