Home / 55,558.28-76,670.60-30,407.80

Finding the Fourth Proportional to 55,558.28, 76,670.60 and 30,407.80

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Solution

The fourth proportional to 55,558.28, 76,670.60 and 30,407.80 is: 41,962.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,558.28 : 76,670.60 = 30,407.80 : x
  2. Step 2: Convert to fraction form
    55,558.28/76,670.60 = 30,407.80/x
  3. Step 3: Cross multiply
    55,558.28x = 76,670.60 × 30,407.80
  4. Step 4: Simplify right side
    55,558.28x = 2,331,384,270.68
  5. Step 5: Solve for x
    x = 2,331,384,270.68/55,558.28
  6. Step 6: Final answer
    x = 41,962.86

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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.