Home / 55,453.36-76,530-31,581.04

Finding the Fourth Proportional to 55,453.36, 76,530 and 31,581.04

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Solution

The fourth proportional to 55,453.36, 76,530 and 31,581.04 is: 43,584.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,453.36 : 76,530 = 31,581.04 : x
  2. Step 2: Convert to fraction form
    55,453.36/76,530 = 31,581.04/x
  3. Step 3: Cross multiply
    55,453.36x = 76,530 × 31,581.04
  4. Step 4: Simplify right side
    55,453.36x = 2,416,896,991.20
  5. Step 5: Solve for x
    x = 2,416,896,991.20/55,453.36
  6. Step 6: Final answer
    x = 43,584.32

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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.