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Finding the Fourth Proportional to 67,438.75, 101,162.99 and 25,885.75

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Solution

The fourth proportional to 67,438.75, 101,162.99 and 25,885.75 is: 38,830.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,438.75 : 101,162.99 = 25,885.75 : x
  2. Step 2: Convert to fraction form
    67,438.75/101,162.99 = 25,885.75/x
  3. Step 3: Cross multiply
    67,438.75x = 101,162.99 × 25,885.75
  4. Step 4: Simplify right side
    67,438.75x = 2,618,679,868.39
  5. Step 5: Solve for x
    x = 2,618,679,868.39/67,438.75
  6. Step 6: Final answer
    x = 38,830.49

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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.