Home / 45,387.20-68,023.20-40,433.60

Finding the Fourth Proportional to 45,387.20, 68,023.20 and 40,433.60

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Solution

The fourth proportional to 45,387.20, 68,023.20 and 40,433.60 is: 60,599.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,387.20 : 68,023.20 = 40,433.60 : x
  2. Step 2: Convert to fraction form
    45,387.20/68,023.20 = 40,433.60/x
  3. Step 3: Cross multiply
    45,387.20x = 68,023.20 × 40,433.60
  4. Step 4: Simplify right side
    45,387.20x = 2,750,422,859.52
  5. Step 5: Solve for x
    x = 2,750,422,859.52/45,387.20
  6. Step 6: Final answer
    x = 60,599.09

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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.