Home / 85,651.96-128,393.18-40,594.12

Finding the Fourth Proportional to 85,651.96, 128,393.18 and 40,594.12

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Solution

The fourth proportional to 85,651.96, 128,393.18 and 40,594.12 is: 60,851.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,651.96 : 128,393.18 = 40,594.12 : x
  2. Step 2: Convert to fraction form
    85,651.96/128,393.18 = 40,594.12/x
  3. Step 3: Cross multiply
    85,651.96x = 128,393.18 × 40,594.12
  4. Step 4: Simplify right side
    85,651.96x = 5,212,007,632.15
  5. Step 5: Solve for x
    x = 5,212,007,632.15/85,651.96
  6. Step 6: Final answer
    x = 60,851.00

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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.