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Finding the Fourth Proportional to 40,020.30, 60,030.45 and 25,245.90

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Solution

The fourth proportional to 40,020.30, 60,030.45 and 25,245.90 is: 37,868.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,020.30 : 60,030.45 = 25,245.90 : x
  2. Step 2: Convert to fraction form
    40,020.30/60,030.45 = 25,245.90/x
  3. Step 3: Cross multiply
    40,020.30x = 60,030.45 × 25,245.90
  4. Step 4: Simplify right side
    40,020.30x = 1,515,522,737.66
  5. Step 5: Solve for x
    x = 1,515,522,737.66/40,020.30
  6. Step 6: Final answer
    x = 37,868.85

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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.