Home / 57,781.44-79,804.20-38,885.76

Finding the Fourth Proportional to 57,781.44, 79,804.20 and 38,885.76

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Solution

The fourth proportional to 57,781.44, 79,804.20 and 38,885.76 is: 53,706.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,781.44 : 79,804.20 = 38,885.76 : x
  2. Step 2: Convert to fraction form
    57,781.44/79,804.20 = 38,885.76/x
  3. Step 3: Cross multiply
    57,781.44x = 79,804.20 × 38,885.76
  4. Step 4: Simplify right side
    57,781.44x = 3,103,246,968.19
  5. Step 5: Solve for x
    x = 3,103,246,968.19/57,781.44
  6. Step 6: Final answer
    x = 53,706.64

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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.