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Finding the Fourth Proportional to 40,301.60, 60,452.40 and 39,783.20

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Solution

The fourth proportional to 40,301.60, 60,452.40 and 39,783.20 is: 59,674.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,301.60 : 60,452.40 = 39,783.20 : x
  2. Step 2: Convert to fraction form
    40,301.60/60,452.40 = 39,783.20/x
  3. Step 3: Cross multiply
    40,301.60x = 60,452.40 × 39,783.20
  4. Step 4: Simplify right side
    40,301.60x = 2,404,989,919.68
  5. Step 5: Solve for x
    x = 2,404,989,919.68/40,301.60
  6. Step 6: Final answer
    x = 59,674.80

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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.