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Finding the Fourth Proportional to 89,939, 134,915.04 and 34,535

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Solution

The fourth proportional to 89,939, 134,915.04 and 34,535 is: 51,805.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,939 : 134,915.04 = 34,535 : x
  2. Step 2: Convert to fraction form
    89,939/134,915.04 = 34,535/x
  3. Step 3: Cross multiply
    89,939x = 134,915.04 × 34,535
  4. Step 4: Simplify right side
    89,939x = 4,659,290,906.40
  5. Step 5: Solve for x
    x = 4,659,290,906.40/89,939
  6. Step 6: Final answer
    x = 51,805.01

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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.