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Finding the Fourth Proportional to 55,377.36, 76,425.12 and 31,505.04

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Solution

The fourth proportional to 55,377.36, 76,425.12 and 31,505.04 is: 43,479.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,377.36 : 76,425.12 = 31,505.04 : x
  2. Step 2: Convert to fraction form
    55,377.36/76,425.12 = 31,505.04/x
  3. Step 3: Cross multiply
    55,377.36x = 76,425.12 × 31,505.04
  4. Step 4: Simplify right side
    55,377.36x = 2,407,776,462.60
  5. Step 5: Solve for x
    x = 2,407,776,462.60/55,377.36
  6. Step 6: Final answer
    x = 43,479.44

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