Home / 55,375.74-76,419.36-31,502.58

Finding the Fourth Proportional to 55,375.74, 76,419.36 and 31,502.58

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Solution

The fourth proportional to 55,375.74, 76,419.36 and 31,502.58 is: 43,474.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,375.74 : 76,419.36 = 31,502.58 : x
  2. Step 2: Convert to fraction form
    55,375.74/76,419.36 = 31,502.58/x
  3. Step 3: Cross multiply
    55,375.74x = 76,419.36 × 31,502.58
  4. Step 4: Simplify right side
    55,375.74x = 2,407,407,001.95
  5. Step 5: Solve for x
    x = 2,407,407,001.95/55,375.74
  6. Step 6: Final answer
    x = 43,474.04

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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.