Home / 91,879.20-137,786.40-41,983.20

Finding the Fourth Proportional to 91,879.20, 137,786.40 and 41,983.20

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Solution

The fourth proportional to 91,879.20, 137,786.40 and 41,983.20 is: 62,960.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,879.20 : 137,786.40 = 41,983.20 : x
  2. Step 2: Convert to fraction form
    91,879.20/137,786.40 = 41,983.20/x
  3. Step 3: Cross multiply
    91,879.20x = 137,786.40 × 41,983.20
  4. Step 4: Simplify right side
    91,879.20x = 5,784,713,988.48
  5. Step 5: Solve for x
    x = 5,784,713,988.48/91,879.20
  6. Step 6: Final answer
    x = 62,960.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.