Home / 74,401.20-111,601.80-48,135.60

Finding the Fourth Proportional to 74,401.20, 111,601.80 and 48,135.60

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Solution

The fourth proportional to 74,401.20, 111,601.80 and 48,135.60 is: 72,203.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,401.20 : 111,601.80 = 48,135.60 : x
  2. Step 2: Convert to fraction form
    74,401.20/111,601.80 = 48,135.60/x
  3. Step 3: Cross multiply
    74,401.20x = 111,601.80 × 48,135.60
  4. Step 4: Simplify right side
    74,401.20x = 5,372,019,604.08
  5. Step 5: Solve for x
    x = 5,372,019,604.08/74,401.20
  6. Step 6: Final answer
    x = 72,203.40

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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.