Home / 74,401.20-111,601.80-46,407.60

Finding the Fourth Proportional to 74,401.20, 111,601.80 and 46,407.60

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Solution

The fourth proportional to 74,401.20, 111,601.80 and 46,407.60 is: 69,611.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,401.20 : 111,601.80 = 46,407.60 : x
  2. Step 2: Convert to fraction form
    74,401.20/111,601.80 = 46,407.60/x
  3. Step 3: Cross multiply
    74,401.20x = 111,601.80 × 46,407.60
  4. Step 4: Simplify right side
    74,401.20x = 5,179,171,693.68
  5. Step 5: Solve for x
    x = 5,179,171,693.68/74,401.20
  6. Step 6: Final answer
    x = 69,611.40

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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.