Home / 56,617.20-77,996.75-39,589.61

Finding the Fourth Proportional to 56,617.20, 77,996.75 and 39,589.61

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Solution

The fourth proportional to 56,617.20, 77,996.75 and 39,589.61 is: 54,539.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,617.20 : 77,996.75 = 39,589.61 : x
  2. Step 2: Convert to fraction form
    56,617.20/77,996.75 = 39,589.61/x
  3. Step 3: Cross multiply
    56,617.20x = 77,996.75 × 39,589.61
  4. Step 4: Simplify right side
    56,617.20x = 3,087,860,325.84
  5. Step 5: Solve for x
    x = 3,087,860,325.84/56,617.20
  6. Step 6: Final answer
    x = 54,539.26

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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.