Home / 45,625.60-68,438.40-40,403.20

Finding the Fourth Proportional to 45,625.60, 68,438.40 and 40,403.20

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Solution

The fourth proportional to 45,625.60, 68,438.40 and 40,403.20 is: 60,604.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,625.60 : 68,438.40 = 40,403.20 : x
  2. Step 2: Convert to fraction form
    45,625.60/68,438.40 = 40,403.20/x
  3. Step 3: Cross multiply
    45,625.60x = 68,438.40 × 40,403.20
  4. Step 4: Simplify right side
    45,625.60x = 2,765,130,362.88
  5. Step 5: Solve for x
    x = 2,765,130,362.88/45,625.60
  6. Step 6: Final answer
    x = 60,604.80

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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.