Home / 55,374.30-76,415.40-30,223.80

Finding the Fourth Proportional to 55,374.30, 76,415.40 and 30,223.80

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Solution

The fourth proportional to 55,374.30, 76,415.40 and 30,223.80 is: 41,708.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,374.30 : 76,415.40 = 30,223.80 : x
  2. Step 2: Convert to fraction form
    55,374.30/76,415.40 = 30,223.80/x
  3. Step 3: Cross multiply
    55,374.30x = 76,415.40 × 30,223.80
  4. Step 4: Simplify right side
    55,374.30x = 2,309,563,766.52
  5. Step 5: Solve for x
    x = 2,309,563,766.52/55,374.30
  6. Step 6: Final answer
    x = 41,708.23

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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.