Home / 55,471.29-76,531.69-31,581.05

Finding the Fourth Proportional to 55,471.29, 76,531.69 and 31,581.05

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Solution

The fourth proportional to 55,471.29, 76,531.69 and 31,581.05 is: 43,571.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,471.29 : 76,531.69 = 31,581.05 : x
  2. Step 2: Convert to fraction form
    55,471.29/76,531.69 = 31,581.05/x
  3. Step 3: Cross multiply
    55,471.29x = 76,531.69 × 31,581.05
  4. Step 4: Simplify right side
    55,471.29x = 2,416,951,128.47
  5. Step 5: Solve for x
    x = 2,416,951,128.47/55,471.29
  6. Step 6: Final answer
    x = 43,571.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.