Home / 57,445.53-79,186.95-40,403.33

Finding the Fourth Proportional to 57,445.53, 79,186.95 and 40,403.33

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Solution

The fourth proportional to 57,445.53, 79,186.95 and 40,403.33 is: 55,694.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,445.53 : 79,186.95 = 40,403.33 : x
  2. Step 2: Convert to fraction form
    57,445.53/79,186.95 = 40,403.33/x
  3. Step 3: Cross multiply
    57,445.53x = 79,186.95 × 40,403.33
  4. Step 4: Simplify right side
    57,445.53x = 3,199,416,076.61
  5. Step 5: Solve for x
    x = 3,199,416,076.61/57,445.53
  6. Step 6: Final answer
    x = 55,694.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.