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Finding the Fourth Proportional to 67,478.87, 101,279.73 and 35,915.43

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Solution

The fourth proportional to 67,478.87, 101,279.73 and 35,915.43 is: 53,905.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,478.87 : 101,279.73 = 35,915.43 : x
  2. Step 2: Convert to fraction form
    67,478.87/101,279.73 = 35,915.43/x
  3. Step 3: Cross multiply
    67,478.87x = 101,279.73 × 35,915.43
  4. Step 4: Simplify right side
    67,478.87x = 3,637,505,567.72
  5. Step 5: Solve for x
    x = 3,637,505,567.72/67,478.87
  6. Step 6: Final answer
    x = 53,905.84

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1.5x scale

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.