Home / 91,449.41-126,211.77-55,637.28

Finding the Fourth Proportional to 91,449.41, 126,211.77 and 55,637.28

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Solution

The fourth proportional to 91,449.41, 126,211.77 and 55,637.28 is: 76,786.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,449.41 : 126,211.77 = 55,637.28 : x
  2. Step 2: Convert to fraction form
    91,449.41/126,211.77 = 55,637.28/x
  3. Step 3: Cross multiply
    91,449.41x = 126,211.77 × 55,637.28
  4. Step 4: Simplify right side
    91,449.41x = 7,022,079,586.79
  5. Step 5: Solve for x
    x = 7,022,079,586.79/91,449.41
  6. Step 6: Final answer
    x = 76,786.50

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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.