Home / 89,139.94-122,991.09-52,849.90

Finding the Fourth Proportional to 89,139.94, 122,991.09 and 52,849.90

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Solution

The fourth proportional to 89,139.94, 122,991.09 and 52,849.90 is: 72,919.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,139.94 : 122,991.09 = 52,849.90 : x
  2. Step 2: Convert to fraction form
    89,139.94/122,991.09 = 52,849.90/x
  3. Step 3: Cross multiply
    89,139.94x = 122,991.09 × 52,849.90
  4. Step 4: Simplify right side
    89,139.94x = 6,500,066,762.94
  5. Step 5: Solve for x
    x = 6,500,066,762.94/89,139.94
  6. Step 6: Final answer
    x = 72,919.80

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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.