Home / 89,825.79-123,962.67-49,540.80

Finding the Fourth Proportional to 89,825.79, 123,962.67 and 49,540.80

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Solution

The fourth proportional to 89,825.79, 123,962.67 and 49,540.80 is: 68,368.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,825.79 : 123,962.67 = 49,540.80 : x
  2. Step 2: Convert to fraction form
    89,825.79/123,962.67 = 49,540.80/x
  3. Step 3: Cross multiply
    89,825.79x = 123,962.67 × 49,540.80
  4. Step 4: Simplify right side
    89,825.79x = 6,141,209,841.94
  5. Step 5: Solve for x
    x = 6,141,209,841.94/89,825.79
  6. Step 6: Final answer
    x = 68,368.00

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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.