Home / 55,531.91-76,635.79-30,381.41

Finding the Fourth Proportional to 55,531.91, 76,635.79 and 30,381.41

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Solution

The fourth proportional to 55,531.91, 76,635.79 and 30,381.41 is: 41,927.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,531.91 : 76,635.79 = 30,381.41 : x
  2. Step 2: Convert to fraction form
    55,531.91/76,635.79 = 30,381.41/x
  3. Step 3: Cross multiply
    55,531.91x = 76,635.79 × 30,381.41
  4. Step 4: Simplify right side
    55,531.91x = 2,328,303,355.81
  5. Step 5: Solve for x
    x = 2,328,303,355.81/55,531.91
  6. Step 6: Final answer
    x = 41,927.31

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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.