Home / 72,989.89-100,726.07-41,158.80

Finding the Fourth Proportional to 72,989.89, 100,726.07 and 41,158.80

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Solution

The fourth proportional to 72,989.89, 100,726.07 and 41,158.80 is: 56,799.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,989.89 : 100,726.07 = 41,158.80 : x
  2. Step 2: Convert to fraction form
    72,989.89/100,726.07 = 41,158.80/x
  3. Step 3: Cross multiply
    72,989.89x = 100,726.07 × 41,158.80
  4. Step 4: Simplify right side
    72,989.89x = 4,145,764,169.92
  5. Step 5: Solve for x
    x = 4,145,764,169.92/72,989.89
  6. Step 6: Final answer
    x = 56,799.16

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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.