Home / 55,705.41-76,872.42-31,505.96

Finding the Fourth Proportional to 55,705.41, 76,872.42 and 31,505.96

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Solution

The fourth proportional to 55,705.41, 76,872.42 and 31,505.96 is: 43,477.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,705.41 : 76,872.42 = 31,505.96 : x
  2. Step 2: Convert to fraction form
    55,705.41/76,872.42 = 31,505.96/x
  3. Step 3: Cross multiply
    55,705.41x = 76,872.42 × 31,505.96
  4. Step 4: Simplify right side
    55,705.41x = 2,421,939,005.26
  5. Step 5: Solve for x
    x = 2,421,939,005.26/55,705.41
  6. Step 6: Final answer
    x = 43,477.63

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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.