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Finding the Fourth Proportional to 40,430.40, 60,645.60 and 36,801.60

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Solution

The fourth proportional to 40,430.40, 60,645.60 and 36,801.60 is: 55,202.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,430.40 : 60,645.60 = 36,801.60 : x
  2. Step 2: Convert to fraction form
    40,430.40/60,645.60 = 36,801.60/x
  3. Step 3: Cross multiply
    40,430.40x = 60,645.60 × 36,801.60
  4. Step 4: Simplify right side
    40,430.40x = 2,231,855,112.96
  5. Step 5: Solve for x
    x = 2,231,855,112.96/40,430.40
  6. Step 6: Final answer
    x = 55,202.40

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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.