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Finding the Fourth Proportional to 60,423.90, 90,645.09 and 30,825.60

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Solution

The fourth proportional to 60,423.90, 90,645.09 and 30,825.60 is: 46,243.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,423.90 : 90,645.09 = 30,825.60 : x
  2. Step 2: Convert to fraction form
    60,423.90/90,645.09 = 30,825.60/x
  3. Step 3: Cross multiply
    60,423.90x = 90,645.09 × 30,825.60
  4. Step 4: Simplify right side
    60,423.90x = 2,794,189,286.30
  5. Step 5: Solve for x
    x = 2,794,189,286.30/60,423.90
  6. Step 6: Final answer
    x = 46,243.11

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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.