Home / 57,977.34-79,968.66-40,786.18

Finding the Fourth Proportional to 57,977.34, 79,968.66 and 40,786.18

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Solution

The fourth proportional to 57,977.34, 79,968.66 and 40,786.18 is: 56,256.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,977.34 : 79,968.66 = 40,786.18 : x
  2. Step 2: Convert to fraction form
    57,977.34/79,968.66 = 40,786.18/x
  3. Step 3: Cross multiply
    57,977.34x = 79,968.66 × 40,786.18
  4. Step 4: Simplify right side
    57,977.34x = 3,261,616,161.12
  5. Step 5: Solve for x
    x = 3,261,616,161.12/57,977.34
  6. Step 6: Final answer
    x = 56,256.74

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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.