Home / 53,130.53-73,309.46-40,380.32

Finding the Fourth Proportional to 53,130.53, 73,309.46 and 40,380.32

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Solution

The fourth proportional to 53,130.53, 73,309.46 and 40,380.32 is: 55,716.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,130.53 : 73,309.46 = 40,380.32 : x
  2. Step 2: Convert to fraction form
    53,130.53/73,309.46 = 40,380.32/x
  3. Step 3: Cross multiply
    53,130.53x = 73,309.46 × 40,380.32
  4. Step 4: Simplify right side
    53,130.53x = 2,960,259,435.20
  5. Step 5: Solve for x
    x = 2,960,259,435.20/53,130.53
  6. Step 6: Final answer
    x = 55,716.73

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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.