Home / 89,617.88-123,671.72-49,330.80

Finding the Fourth Proportional to 89,617.88, 123,671.72 and 49,330.80

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Solution

The fourth proportional to 89,617.88, 123,671.72 and 49,330.80 is: 68,075.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,617.88 : 123,671.72 = 49,330.80 : x
  2. Step 2: Convert to fraction form
    89,617.88/123,671.72 = 49,330.80/x
  3. Step 3: Cross multiply
    89,617.88x = 123,671.72 × 49,330.80
  4. Step 4: Simplify right side
    89,617.88x = 6,100,825,008.30
  5. Step 5: Solve for x
    x = 6,100,825,008.30/89,617.88
  6. Step 6: Final answer
    x = 68,075.98

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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.